Quote


"A healthy attitude is contagious but don't wait to catch it from others. Be a carrier." ~ Unknown Retweet this button on every post blogger

Why Algebra Tiles?



Algebra tiles provide a concrete, visual manner to "see" equations. They are part and parcel of the approach to math that exalts the value of multiple representations and a variety of approaches towards solving problems.


They are not a crutch, but they do serve students who have significant difficulties dealing with algebra on a purely symbolic level. For students who are able to navigate the symbology, these same tiles stretch the mind to "justify" why the moves they have learned "work". For all students, the tiles continually reinforce the concept of negatives as "opposites" because each time they cross a region on the mat, the students is obligated to flip them, thus showing their opposite. That is a concept that is easily lost to beginning algebra students as they rush to "solve" equations.


Later in the course, when we look at factoring polynomials, these tiles will no longer feel "backwards" but will actually provide key support for all students to feel successful at this difficult task.


Finally, these tiles reinforce the very true interconnectedness between algebra and geometry as well as arithmetic in general as the rectangle model we are using (known as "array" model) is an excellent basis to understand multiplication/division and fractions.


I notice that students who accept the tiles as a part of algebra are more successful down the line when we come to use them for more complicated concepts. In particular, many MANY 8th grades make simple errors as the “rush” along the path towards “solving” equations. The tiles kind of make them slow down and justify their moves.




And yet, I must admit, my students resist the use of tiles year after year. They often say they are more confused about what algebra means when they use them. Usually when I ask them to take out the tiles, there is an adolescent groan in the room. 


This year I made my best effort to ignore this because I know that the tiles present algebra concepts very concretely. In particular, I like how the tiles, on tile mats, oblige the students to consider the real meaning of negative numbers (as opposites). I have begun to see my students make intuitive decisions about how to solve for variables rather than procedural ones. However, they still complain. 


I have my theories why, but what do you think is happening with them?
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8th Grade Responses to my survey on participation


Question: What do you do when you have a question in class?

I ask my table-mates to explain what the problem is asking, and if I still don't get after I try or if we share answers and come up with different ones then I ask them how they got their answer. Yes its helps.


When I have a question about classwork, I usually ask one of my friends to help me. If no one is available I would ask Glenn to help me. It helps a lot to ask someone what is going on. Everyone is very understanding.


When I have a question about classwork I ask a math student at my table. But if that student doesn't understand, I try to figure out the question myself a little more. If I'm still not sure then I will go to Glenn and ask and this process works.


when i have a question about classwork i ask my friends. not go to glenn . i go to my friends because i think they know how to relate to me and really noticed my problems. when i asked half the class, then my friends get help and i listen to glenn. but i don't like going to glenn.


Question: If you could change something about math class that would help you participate better, what would that be?


I would probably make you go around more and ask people if they need help more instead of waiting for them to ask you, because some kids dont ask questions when they need help


If you didn't take a kid out of class everyday I could participate better. You are always taking J. or O. or someone out of class and I don't think it's productive. You have to pick your battles or else what you say will become meaningless to them.


(I am puzzled by this response as this has only happened twice this year)


If I could change something about math class, I would stop using the algebra tiles. The algebra tiles make things harder for me than just solving the problem, and so I don't participate as much.


If I could change something about math class that would help me participate in class better, it would be that if you don't want to, you don't have to write on the board. I sometimes get embarrassed when people correct my work.


(I am puzzled by this response as well as I never force anyone other than volunteers to go to the board)


Without a doubt, this current group of 8th graders challenge the status quo of class and rebel against much of it. They understand the class differently than I do. I have moved pretty far from the book, instead opting for short, quick algebra lessons based on manipulatives and SmartBoard interactions. I don't use a lot of games to date, which I would agree with them, in part because I feel an uneven participation and also because really useful algebra games that teach important concepts or (at least) reinforce them are few and far between from my perspective. I also feel there has to be a certain level of steady practice in class as a trade off for doing far less homework than I have had my students do in the past.


The best thing I got from these comments is that my students realize that I value their interactions with each other as the first, second and even third resource before coming to me for help.



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Student writing about what he learned in algebra


If you have students write, they will make great connections. I find this student's writing particularly clear and it is obvious to me that he "gets" the bigger picture of different ways to solve systems of equations:

I learned a lot in Chapter 6. We learned about all the different ways of solving a system of equations. We reviewed the equal values method, where you make each equation equal to the same thing, make them equal, and then solve for the variables. We learned about the substitution method, where, for instance, if you had one equation in a y=mx+b form, you replace y in the other equation with whatever mx+b is. Then, finally, we learned about the elimination method, where you try to get rid of one of the variables. For instance, if you have two equations: x+2y=1, and 3x+5y=8, you would want to multiply the first equation by 3 so you would have 2 "3x's" and then subtract the second equation from the first equation. This method is very useful because it is quick and easy. I think my favorite method is the substitution method. The substitution method can almost always be used and it is also very easy and pretty simple. I don't like he equal values method because it takes a really long time for me and it seems a little more complicated than the others. The elimination method isn't bad, it works pretty well but it is less useful than the substitution method in my opinion.



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A nice student comment about how math class is going.


Last night I learned how to make a Google Docs survey form. I loved the simplicity of it and the immediacy for my project of collecting more student feedback on how the class is going. I imbedded the form on a special math blog I keep for these types of forms, then had my students access the website and complete the survey. It took them about 15 minutes total to do this (we have student laptops available for each student at my school). The questions I used were the following:


1. What is going well for you in math?
2. What is difficult for you in math class?
3. Rate your participation in class (options: more, same or less than other students)
4. When you have a question in class, what do you do? Does it work?
5. When you have a question about homework, what do you do? Does it work?
6. When you have a question during a test/quiz, what do you do? Does it work?
7. If you could change one thing about class, what would it be?


The feedback was very positive: my students are hearing my earnest desire to maintain their homework life doable and meaningful ("not busy work" said one of them) and that I should be a resource of last resort after talking with peers and thinking about the math (I don't want to be the omnipresent, know-it-all teacher).

There was one particular comment that I wasn't expecting, but enjoyed reading and consider:


Everything is going well for me in math this year. 


I understand the concepts how you explain them and the homework seems like a good amount that helps me understand the classwork. 


The homework usually isn't busywork. :) 


We have math class as the last period on Friday and I like how you understand that we might get restless. 


Some teachers wouldn't realize that.



The reason I like this comment is that it tells me that this student hears my compassion for their school life complications and try to deal with them in positive ways. Even naming these frustrations seems to make some students feel more understood.


My ultimate goal is to be a compassionate, realistic math teacher with high academic standards. Sometimes it seems that these three adjectives are contradictory, especially when applied to the MATH TEACHER as a stereotype. At least with this group of students, I am winning the battle to receive the "benefit of doubt" that I wrote about earlier.



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Major Tom


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Quote


"Don't let yesterday take up too much of today."
— John Wooden

Let's remember yesterday when appropriate, but let's focus on TODAY!

What worked yesterday does not make it the right or superior approach today.

What "worked" yesterday might not have even been real, anyway.

Perhaps it was illusion.

Like Carl in the Pixar movie "UP"

You  might find yourself carrying around your entire house

awkwardly through the jungle you are NOW in.

Revaluate if you are carrying what is important

or tying yourself down needlessly.

Be it as it were:

Evaluate

Reevaluate

And err towards NOW

And let yesterday rest where it belongs.

Take up the reigns of TODAY.

You are needed.





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Benefit of the doubt


From Seth Godin's blog:



It's almost impossible to communicate something clearly and succinctly to everyone, all the time.


So misunderstandings occur.
We misunderstand a comment or a gesture or a policy or a contract.


And then what happens?


Well, if we're engaged with someone we like or trust, we give them the benefit of the doubt. We either assume that what they actually meant was the thing we expected from someone like them, or we ask about it.


If we're engaged with a stranger or someone we don't trust, we assume the worst.


The challenge, then, is to earn the benefit of the doubt.



This seems to fit nicely into a professional exploration I am conducting. With me as the subject.


I personally know myself and I know myself well enough to know that my intentions are excellent, my compassion heartfelt and my attention to detail consistent.


In fact, consistent is the one word that best describes my professional conduct with my students.


But, I don't always have enough "benefit of the doubt" with some of my students and their families. I also don't have sufficient of this commodity with a certain administrator.


I currently have a very low account balance with a significant portion of one grade, but I have an abundance of it with another grade. Unfortunately, the administrator notices the lower account and overlooks the abundant one.


I believe I have less credence with the one group due to some misinterpreted messages that grew up and beyond me before I knew about them. I believe that I have greater credence with the other group because I have been explicit with praise for specific achievements and a little more laid back with my approach to the class.  


If I were to evaluate my standing in both groups, I would see that with the group with a higher opinion of me lies more effort to meet the academic standards I have set for them. There is less fighting, less resistance and more openess to suggestions.


I will continue this exploration, and in the mean time, I am considering how one goes about reacquring  the benefit of doubt without pandering to mistaken behaviors of entitlement that come with certain middle school minds. Retweet this button on every post blogger

Why are fractions so difficult to learn


As many adults know, learning the various fraction operations can be difficult for many people. It's not the concept of fraction that is difficult - it is the addition, multiplication, subtraction, simpifying, etc. - various operations that you do with fractions. And the simple reason why learning the various fraction operations proves difficult is the way they are typically taught in school books.

Just look at the amount of rules there are to learn about fractions:
          
1. Fraction addition - same denominators
Add the numerators, and use the same denominator


2. Fraction addition - different denominators
First find a common denominator by taking the least common multiple of the denominators. Then convert all the addends to have this common denominator. Then add using the rule above.


3. Finding equivalent fractions
Multiply both the numerator and denominator with a same number


4. Mixed number to a fraction
Multiply the whole number part by the denominator and add the numerator to get the numerator. Use the same denominator as in the fractional part of the mixed number.


5. (Improper) fraction to a mixed number
Divide the numerator by the denominator to get the whole number part. The remainder will be the numerator of the fractional part. Denominator is the same.


6. Simplifying fractions
Find the (greatest) common divisor of the numerator and denominator, and divide both by it.


7. Fraction multiplication
Multiply the numerators, and the denominators.


8. Fraction division
Find the reciprocal of the divisor, and multiply by it. 


If students simply try to memorize these without knowing where they came from, they will probably seem like a jungle of seemingly meaningless rules. By meaningless I mean that the rule does not seem to connect with anything about the operation - it is just like a play where in each case you multiply or divide or add or do various things with the numerators and denominators and that then should give you the answer.


Fraction math can then become blind following of the rules, tossing the numbers here and there, calculating this and that - and getting answers of which the kids have no idea if they are reasonable or not. And of course, it is quite easy to forget these rules, or remember them wrong - especially after 5-10 years.




Solution: 
manipulatives and use of pictures help understand fraction operations




Instead of merely presenting a rule, as many schoolbooks do, a better way is to teach children to visualize fractions, and perform some simple operations with these visual images or pictures, without knowingly applying any given 'rule'.


If a person is able to visualize fractions in his mind, he becomes more concrete - not just a number on top of other number without meaning. Then that person can estimate the answer before calculating, and evalute the reasonableness of the final answer, and perform many of the simplest operations in his head.


Of course textbooks DO show fractions with pictures, and they DO show one or two examples of how a certain rule connects with a picture. But that is not enough! A better way is to make students do lots of problems with fraction manipulatives - and DRAW fraction pictures for problems. That way they will form a mental visual model and can think through the pictures for simple problems.


If you think through pictures, you will easily see the need for multiplying or dividing both the numerator and denominator by the same number. But before voicing that rule, it is better that students get lots of 'hands-on' experience with fraction pictures they can draw themselves. They can even have fun splitting the pieces further, or conversely merging pieces together. They may find the rule, or you may tell them about it - and it will make sense. If they later forget the rule, they can always think back to splitting pieces, and re-discover it.


Another example is the lesson about teaching addition of unlike fractions . One can show how the individual fractions need to be 'split' into further pieces so that they are all same kind of pieces. One doesn't need to discuss "least common denominator" at this point. The teacher can simply use pictures or manipulatives. Then, the students will do the same with manipulatives, or by drawing pictures. After a while, some students might discover the 'rule' as to what kind of pieces the fractions need split. And in any case, they will certainly remember it better when they have been able to verify it themselves with numerous examples.


I'm not saying that the rules are not needed - because they are. You can't get through algebra without knowing the rules for fraction operations. But if 10 years from now the student maybe has forgotten algebra and the fraction rules, hopefully she will have retained the simple fraction pictures and is able to "do math" with the pictures in her mind, and not consider fractions as something she just "cannot do".




1.  Think back to when you started to learn how to add and subtract with fractions. How was it presented to you?


2.  Look at the list of  “rules” for operations involving fractions. Which one was (is) difficult for you and why?


3.   This article proposes the use of manipulatives (fraction circles) as a solution. Do you agree or disagree and why? How does your personal experience influence your opinion?
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The Brain: Humanity's Other Basic Instinct: Math


The Brain: Humanity's Other Basic Instinct: Math

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Abbott And Costello 13 X 7 is 28


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My son earns his blue/green belt


I post this video, in part out of pride for his accomplishments, but also as a thought about what is missing in American education since I've been a teacher.

My son has been working hard for his belt. He had to take a comprehensive test that showed he had mastered all the previoius skills leading up this current belt. He was guided and mentored during the test, but in the end, if he could not do it, he would not have passed.

When he did pass, he was given a certificate of completion, his new belt and a public recognition of his achievement. He was very proud and also quite tired, but he knew he had done something important.

I notice that in American education there is not enough real recognition of accomplishment and in fact, we often try to level the playing field, giving participation points, even when the participants are half hearted at best. We don't mark the important achievements that define the journey in schooling.

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Improved Biweeklies for my middle school math classes


Alanna.pdf

Bianca.pdf
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Sharing Pizza @ Camp Kenyon: a ratio dilemma



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Ratio Riddles



Ratio Riddles for 5, Please


  1. I am the ratio of the least 3-digit number to the greatest 3-digit number. Who am I?
  2. I am the ratio of the number ‘100 less than 949’ to the number ‘100 more than 949’. Who am I?
  3. I am the ratio of the only even prime number to the least odd prime number. Who am I?
  4. I am the ratio of the difference between 19 and 34 and the sum of 19 and 34. Who am I?
  5. I am the ratio of the 2nd power of 10 to the 3rd power of 10. Who am I?
  6. I am the ratio of the greatest common factor of 4/6 to the least common multiple of 4/6. Who am I?
  7. I am the ratio of the least factor of 36 to its greatest factor. Who am I?
  8. There are 3 numbers – 0.5, 1.5 and 4. I am the ratio of their sum to their product. Who am I?
  9. I am the ratio of the ‘right angle’ to the ‘sum total of all the angles’ in a right-angled triangle. What am I?
  10. I am the ratio of the number of sides of a square to the number of sides of a hexagon. Who am I?
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Frantic parent email re: failed math program


Frantic parent email:

Dear Glenn,

K was helping A with his POW last night.  He was alarmed at how rusty his basic arithmetic was...he was very slow at basic computation and had problems breaking down the problem.  On doing a bit more arithmetic this morning I too noticed that the initial attack at a basic 13 (Its Friday the 13th) x 4, x 5 x 6 etc. was hesitant and patently wrong.  Once we worked it through he warmed up and started doing his arithmetic right...but wow...we start to friek out when this happens

This confirms some inclinations I have had about how much mental gymnastics A needs to keep his brain lubricated so to speak, and I don;t see or feel it happening in school...I am also really concerned that he will come out of middle school without a grounding in the California State Standards which are in fact incredible and thorough and necessary to learn and prepare him for either algebra or geometry in high school.

I am also hyper aware of how behind both E and D were when entering High School Math, and how disadvantaged they have been to not pass out of Algebra into geometry their freshman year.  It is affecting E now as she goes into the testing process which, much as everyone would like it to be otherwise is an incredibly important factor in making college choices etc. And she does wonderfully in math. It is just the sheer level or material covered that limits what other things you can do or know.  It is affecting D in that she would have liked to be in honors chemistry but could not do the math to make it in, simply because she has not gotten to that level soon enough.  I am sort of determined that A get the best possible shot, if he is capable, of getting to the level he can achieve.

So K and I are setting aside extra time during the week and weekend to work with A.  We are also considering a tutor (which totally kills me since we are paying such huge sums for school). But we need some help.  We need materials.  We need to know what to work on.  The standards, while very good and thorough, are for educators and hard to parse into actual problem sheets.  I mentioned my thoughts at the beginning of the summer to your administrator, I was glad to have materials for A to work on over the summer...but I feel like it needs to continue and it needs to happen now and fast and intensely.

A thinks incredibly literally/concretely...the conceptual approach, while important is not always the best in for him....he needs to do do do do do...so PLEASE point me where to go to find appropriate math problems to do with him over the next two months and see what we can achieve so we can continue a program throughout the year and through next year.  We will begin this weekend with some problems we make up ourselves.


My response? Here it is:

Dear XXXXX:

I'm glad the book looks good to you. 

Kids go through math differently, as they do puberty, and what we think they knew as 10 year olds is often either forgotten or foggy for a while, then comes back. You might know that I was a 4th adn 5th grade teacher for 10 years and had many of my students as 7th and 8th graders here at our school , so I have a lot of anecdotal information about who they were at 10 yrs. old, who they were at 13, and who they are now. All of them are very successful in their high schools at this point. I, like you, was shocked at what was easy, becoming hard. But all the research I've read on puberty, plus my professional experience, indicates that this is a normal phase for many if not most kids and should be viewed with patience, not as a fixed trait.

I understand, as a parent, that you want the best for A., as do I. We spend 10-15 minutes daily on arithmetic reivew (yesterday on addition of fractions). Arithmetic is not the problem. If A. was considered a strong 5th grade math student, it was because arithmetic is the entire focus of the 5th grade year in his school. 

It is the more abstract thinking required for algebra that is developed in middle school, both at our school as well as the district.

I remember a conversation you and I had years back, after the SCAMP project, when you said that E., for the first time, was telling you how much she enjoyed thinking about the deeper math around her. It is the abstract, problem solving mind who enjoys exploring deeper math that we strive to develop at our school.

yours



Was I frustrated with her email? Yes. I don't think she "gets" what a comprehensive, middle school math program looks like. I also believe she has a misguided image of her child's background in math from the previous school. Nevertheless, I believe that all parents should be heard with compassion and responded to with a clear head. Did I manage it this time? What would you have said differently?
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My Article Was Published Here...



It is a theme I've been thinking about a while: Wilding the Tame Curricula

Picture 1.png

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Nice site explaining division of fractions


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Exemplary 7th Grade POW Essay




The title of this P.O.W. is Justin Needs Out! In this problem you are working for someone, and you get paid $1,000 on the first day, but have to pay a commission of $100. The next day your salary is double what you had at the end of the day, and the commission is double what it was the day before. You need to figure out if you will work for a month. The important information is the amount of salary you get each day and the amount of commission you pay each day. The main math topics in this problem are ratios  (salary to commission) and patterns and trends.



To solve this P.O.W. I made a table with five columns, one for the day, one for the salary, one for the commission, one for the profit, and one for the fraction of the salary the commission is. I filled out the columns for day one through fourteen and saw and pattern in the fractions column. It started with one tenth, and then the denominator decreased by one every column. I filled that column in using the pattern. I knew to try this strategy because I have solved problems similar to this, using tables, and it is a great way to organize data. I ran into many problems solving this problem. I asked my dad to check my work after making a table, and three times it turned out I had to start over again because I didn’t read the problem carefully enough. The only resources I used was my dad to check my work and tell me when I’ve totally screwed up (because I have a habit of doing that) and a calculator to save time adding and multiplying large numbers.



No, if I was given this offer I would not except, because the commission doubles every day, but the salary decreases first, and then is doubled every day. Infact, by day twelve I would have given back all the money I earned from day one!By the end of the month I would have lost much, much more money than I had earned. I know my solution is correct because if the salary decreases then doubles, and the commission doubles with out decreasing, eventually you have to be paying more then your receiving. There are no other possible answers.



This problem was interesting because I could solve it using a pattern and I didn’t have to do the math all the way up to the thirtieth day. This problem challenged me because I wasn’t sure what to put in the fractions column after one over one. It stumped me for a while until I asked for help from my dad, and he explained that one over zero would be infinity, and after that I could just go into negative numbers. This problem reminded me of a problem we did in fourth grade where their was one person working for fifty dollars a week and another who started out with one penny a day but the salary doubled every day. Then you had to figure out who would have more money after certain amounts of time. I didn’t manage my time very well this week. I started solving the P.O.W. on Wednesday, finished it on Saturday, started the write up on Saturday and finished it on Sunday. Next week I want to manage my time better by using the P.O.W. time management sheet.
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Verdania: A Mathematical Odyssey: Chapter 7: Chasing


Chapter 7: Discovering
After Jeanie cracked the code to the stone door, Jesse, Miguel and the Captain pushed up against it and it swiveled open with remarkable ease. Cynthia stood to the left of the group and hugged Justin close to her. When the   Captain motioned for the group to follow her, Cynthia shook her head. “We don’t know what we are doing, Captain. I’m not going to risk my son’s life for this crazy chase.”
“Suit yourself, Cynthia. I’m not giving up on my nephew. Anyone else want to stay back? Go ahead.” She entered into the cave with Jesse by her side. Miguel looked at Marge and Jeanie, then they entered as well. Justin looked at his mother, perplexed. 
“Mom, we can’t just stay here and do nothing. Besides, there is probably more danger here than inside the cave. Let’s go.” Just as he finished, though, they both heard an ominous grinding sound as the stone door started to close. Cynthia looked at Justin, who was tugging at her sleeve. “Come on, let’s go with the group.” She relinquished and they both squeezed into the cave just before the entrance completely shut up.
Cynthia expected complete darkness, but was surprised by the amount of ambient light. The walls glowed a golden tone. She touched the stone. It was cool to the touch. Justin was walking ahead of her, calling for the Captain. She followed.
The group of seven walked in amazed silence. Justin traced his finger along the glowing walls. This was not a cave as much as a tunnel. It seemed handmade. Where could it be leading?
The Captain stopped and cocked her head to one side. “I think I hear foot steps. Maybe it’s Justin.” She started running. Jesse ran alongside her, while the rest of the group jogged behind. Jeanie and Marge ran with easy, while Miguel was struggling with a sore foot. Justin could have kept up with the Captain, but stayed back with his mother, who hadn’t run in many years and was huffing and puffing from the exertion.
The tunnel started to slope downwards. There was a slight breeze, reminding Justin of the breezes he felt when the subway trains would arrive to their stations in New York City. He realized that probably meant there was an exit up ahead. As he turned a corner, he saw the glimmer of light ahead. As he got closer, he saw the Captain and Jesse standing there. Then Miguel, Jeanie and Marge stopped with them. He ran up a little ahead of his mother to see why they had stopped.
The tunnel opened up into a crater like valley, surrounded by steep cliffs and full of lush, verdant vegetation, lakes and streams. There was a red stone road leading towards the center of this valley, where it entered into a small jungle about a kilometer and a half from where they stood. The air was misty and quite a bit warmer than it had been on the other side.
Cynthia was bent over, braced against her knees, catching her breath. Jeanie was alongside her doing the same. The Captain turned to the group and said “I’m pretty sure I saw someone go into that jungle from this path. They were pulling a cart of some sort. I’m going to run down there with Jesse. Miguel, you stay back and take care of them.” She pointed to Justin and the others.
“No way, we’re all going together.” said Miguel, looking at Marge. She nodded in agreement. Justin looked at his mother, not sure she could run fast enough. 
“Well, ok, we’re off, then.”
The Captain, Jesse and Miguel started running at a brisk pace. Jeanie and Marge were right behind them. Then came Justin and his mother. It became evident, though, that they were all running at different paces. After about 10 minutes of running, Justin saw the Captain enter the jungle with Jesse and Miguel. Jeanie and Marge were about 300 meters behind her. He figured he and mother were another 120 meters behind them. He was not tired in the least and his mother seemed to be holding up ok, all things considered. 
Your Task: Assuming that the three groups of people were running at a steady pace the entire distance from the tunnel to the jungle, how far behind will Justin and his mother be when Marge and Jeanie enter the jungle? (hint: it won’t be 120 meters) What were the jogging speeds of each of the three groups?
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A thought as I go to sleep...


"What you scatter is more important than what you gather." Retweet this button on every post blogger

Mr Bott


The title of this POW is Justin Needs Out.Justin has moved to W=====e Middle School from a school in New York.He does not like W======e much; it’s too low tech and boring.And he especially dislikes Mr. Bott.Mr. Bott is rude to Justin and the only way Justin can get out of his class is to prove to Mr. Bott that he is too advanced for remedial math.He must solve the math problem to impress Mr. Bott.The problem states that Mr. Bott will pay the student $1000 on the first day in the morning.In return, the student must pay a $100 commission to Mr. Bott at the end of the day.At the end of the day they will also determine the next days payment and commission.Mr. Bott will double the money the student has at the end of the day and double the amount the student has to pay him in commission.Can the student work for a month?The main math topic is logic. Retweet this button on every post blogger

Blogging away: Using personal blogs in math class


I have been experiencing a lot of success using personal student blogs with my math students. Each student has their own blog where they are required to post their written work, which is most the Problem Of the Week essays every other week. In addition, students can leave me notes and post their evaluations. It has made my grading easier because all I have to do is pick up my computer anywhere that has an Internet connection. Via my RSS reader, I see how has posted the latest work. I open up an Acrobat Writeable pdf form I created, read the essay, evaluated it and place it in their drop boxes.

It has made my grading life easier and has required students to "own" their work more because others will read it. Retweet this button on every post blogger

Teaching Ratios: Gestation to Life Span


Is there a link between the gestation period of an animal, and how long it lives?

This was the question inspired by the Connected Mathematics unit: Comparing and Scaling.

It is a problem hidden within the homework section, but which deserved more attention. I find it to be an excellent example of using real world information to practice and apply ratios. It also lent itself to a relatively easy set up on the Smartboard, so that we can stay away from doing math solely from a math book.

Based on the following table, my students created a list of ratios comparing life spans to gestation periods.


 We looked at our lists and discussed whether we saw any direct relationship between life span and gestation. Based on my initial observations, there may be some sort of relatively weak correlation between the two, but it is not as obvious.

I then showed my students how to reduce their ratios to unit rates, comparing days of gestation to one year of life by dividing both sides by life span. This is similar to fractions, but does not require both numbers to share factors. It is an occasion where ratios look like fractions but act under their own special rules.

When we calculated these unit rates, we found that the poor giraffe has a huge cost in gestation days when compared to life span, while humans get off fairly scott free in that category.

Still, this type of data begs to be graphed to "see" if there is a correlation.

Here is what my admittedly rushed graph looked like on the Smartboard.



Based on the data, I would only be able to say that there may be some weak and not terribly useful correlation. Discussing it with a colleague, we wondered if the correlation is actually more of a curved line, indicating that throwing more gestation days into the pot only give marginally better results.

What do you think? Are we way off?

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Math Methods Class


Tonight I brought activities that demonstrated partitive as well as subtractive meanings and algorithms for long division. Then we talked about the role of memorization of math facts. Most of the 30 California teachers felt that memorization had some role, but that conceptual knowledge should back it up. The question for each and every one of us is how we determine that "best balance."

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Partial Product and Quotient



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My school's priorities for math instruction (according to me)



Discovery based with real world application
Student centered
Balances skills, concepts, and problem solving
Interactive activities and games
Formal practice of skills and basic facts
Differentiation/enrichment opportunities
Tools/ manipulatives to meet the needs of all learners
Manageable materials
Easily communicated to families
Assessment: both formative and summative
Alignment with CA and NCTM standards
Research effectiveness
Integration of technology
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This evening I drew a blank


I teach a geometry/algebra course for middle school teachers at our local university. I did not develop the course, hence I use materials collected from other professors. I generally follow the homework schedule and assignments of other profs. I fielded a question from one of my students about a homework problem I felt comfortable dealing with, but for which I had not quite worked out all the details. There was a very obvious triangular number pattern, for which I know, on a good day, a general approach to identify the pattern based on consecutive digits. This problem's pattern had a (x-1)(x-2)÷2 pattern, which I saw, but could not quite identify and I was left staring at the board. After some time, I turned to the class and told them that while I could see the pattern, I could not name it.

I don't know why I drew such a terrible blank. I felt guilty not having the answer, but worse than that, I felt that I let them down with my lack of finesse in that moment.

I am a good teacher, sometimes a great one, and still there are times when I come a big ZERO, even on problems I should and often do know.

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My son's homework tonight was fun


Well, sort of, at least.

I've not been a fan of homework since my son entered 3rd grade.

Reading logs seem dictatorial.

Long sheets of math facts seem boring (although I do see the need for them, at times).

But this week, my son came home with a long questionaire about the origins of his name.

It is a long story. His name Emanuel comes from a favorite Mexican singer of mine. It is also the name that corresponds to my birthday, December 25th, on the catholic calendar. And I like the sound. (Just don't call him Manny). Emanuel also means "God be with you".

His middle name, Ridel, comes from his bio father in Cuba.

He has my last name, Kenyon, which I found out, doing a little internet research, means "blonde" from the nordic invaders into England many a century ago.

His second last name, Ortega, comes from his mother. We found out, in another internet search, that Ortega means "lucky one".

That is the end of his legal name, but he also adds on Verdeses for my husband, his great uncle, whom he calls Tieto. Verdeses comes from Verdes (greens), and has some royal significance.

My son was very excited to find out the meanings of all his names. He remembers when he used to have blonde hair, he feels lucky and he assumes he is a prince. The joy on his face was worth all the other times we've hated homework together.

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Why we need textbooks, but not to depend on them.



Textbooks are an important resource for teachers, but they are just a resource. 


Since textbook authors are typically not aware of specific needs in a school's curriculum, it doesn't make sense to base mathematics instruction entirely on the recommended scope and sequence of a particular textbook. 


The nature of a textbook suggests that only a very limited number of examples can be included, which leaves the classroom teacher as the primary resource for meaningful. 


This is an important point when considering that only the teacher, not the textbook, is capable of  assessing and addressing the needs of the individuals in the class.


However, a good textbook allows a teacher to base lessons on interesting and relevant problems without having to spend too much time inventing or searching them. In order for the teacher to be successful with the textbook, he/she needs a deep mathematical background as well as a clear vision of the scope and sequence not of the text, but of the grade level being taught.
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Constructivist vs. Traditional Math Programs



Typically it is the “lattice” method of multiplication that pushes parents over the edge. This method taught to elementary school students under the Everyday Mathematics program, one of several national programs collectively labeled “constructivist” math, is so jarring to those raised in a traditional math program that it ends up being the last straw. 


Is there really a problem? Is this a case of parents stuck in their ways, unable to see beyond their own childhood experience? Do constructivist math programs like Everyday Math offer innovative strategies for modern students, or do they simply confuse students with pointless computational methods removed from the real world? Is traditional math instruction any better? 


Lee Stiff, a past President of the National Council of Teachers of Mathematics, rejects the label “constructivist” math. The term was coined because these programs aim to have students construct their own knowledge through their own process of reasoning. He prefers the term “standards” based mathematics, but whatever the term the program is the same. In a defense of these programs Mr. Stiff writes:


“Reform-minded teachers pose problems and encourage students to think deeply about possible solutions. They promote making connections to other ideas within mathematics and other disciplines. They ask students to furnish proof or explanations for their work. They use different representations of mathematical ideas to foster students' greater understanding. These teachers ask students to explain the mathematics.


Their students are expected to solve problems, apply mathematics to real-world situations, and expand on what they already know. Sometimes they work with other students. Sometimes they work alone. Sometimes they use calculators. Sometimes they use only paper and pencil.”


It is hard to argue with a statement like that. Who would disagree that students should not have a deeper understanding of math?


It might be that some of the roots of constructivist math are in the field of early childhood education where preschool and Kindergarten aged children have long been encouraged to understand mathematical concepts in multiple physical and intuitive ways. 


Maria Montessori pioneered the use of what modern teachers call “manipulatives.” These physical teaching aids, which might be a simple as blocks, help young minds grasp the nature of mathematical concepts through their senses. Just as two times six equals twelve on paper, two piles of six blocks equals twelve on the classroom floor. Such techniques are long recognized as useful and necessary to promote developmental growth. A variety of available physical outlets for understanding mathematical concepts means that young children will be able to develop a comfortable relationship with numbers on their own.




That same sort of philosophy is part of the constructivist math program. The idea that children could have different methods for reaching the same answer or those children should be allowed to find a method with which they are personally most comfortable is not inconsistent with established early childhood educational norms. 


Yet, there is one key difference with constructivist math programs: now we are much further along on the developmental scale. Everyday Math and similar national programs are used not in preschool but in elementary school and on up to sixth or even eighth grade. In writing curriculum, “invented” spelling is allowed in lower grades so as not to stifle creativity for the sake of accuracy. In later grades, though, spelling is examined and corrected and eventually accurate spelling is required. It is often said that this principle does not seem to have a corollary in constructivist math. The disparaging term “fuzzy” math is a reference to this fact. In fact, it is the teacher's emphasis on efficiency and proficiency that matters in this case, not the "program".  Retweet this button on every post blogger

Memories



I'm thinking of the 22 years I've spent as a teacher.

I bumped into a Facebook group of alumni from a dear, previous school I worked at. Spent my 30's and part of my 40's there. Well enough into my career to know what I was doing and what I wanted to make of it. Single, until I was not. Childless until I was not. I idealist until I was a little less (never quite lose the idealism of wanting each school year to be the best for my students).

On the Facebook page, the memories posted were of the big events. The field trips, the songs, the art projects, specific teachers.

It got me thinking of the overnight field trips: the BIG ones. We used to take our 5th graders to Mazatlan and El Recodo (yes, it was a public school, but a special one at that). I have so many fond memories of that trip. Spent so much time organizing and instituionalizing the trip. I was one of two teachers who organized the activites, particularly, the academic end. What did our students need to know, how would we teach it, and what would they do when in Mazatlán. It was a great, creative and exhausting time.

8 of the 9 years I went on the trip. By the last year, I no longer wanted to go. I had a young boy at home. The trip had changed. It was too predictable. Then it was moved to Cuernavaca and I couldn't relate to the need to go anymore, but was needed. I did not enjoy that trip. I don't enjoy being in the 'back seat' of anything. I love to collaborate. On that trip, I was merely a chaperone.

Fast forward to my new school. Our 8th graders go to a great place in Patzcuaro, Michoacan, Mexico. I've gone each of the 4 years. The second year, I even took over the organization of the trip. I have taken my son each of the years I've gone, except the first one. Since he is a rambunctious and bilingual kid, he loved the trip probably much more than the 8th graders did. These years will form a special time for me and him that I hope to conserve.

This year, I have made a decision that I don't want to go on the trip. I've told the Heads of school as well as the lead Spanish teacher (a friend of mine) that I would prefer not to go, in fact, that I don't want to go. It will be funny not to be on that end of the trip for once, but I think I have lost some steam and enthusiasm with traveling abroad with students, at least this year.

The question I grapple with is whether this is a sign of resignation and loss of enthusiasm. I still love teaching and I love doing things that truly do impact students' formation. While I like to think that the activities I do in class have an impact, what kids really, really remember are the trips, the songs, the silly games. I don't sing and I'm not known for silly games, but I do travel with kids to distant and interesting places. Am I giving up on that or is this just a temporary thing? Retweet this button on every post blogger

LGBT.....xyz....abc....


This evening I went with my 9 year old son to the "annual" LGBT family "picnic" for our School. I am not sure exactly how many LGBT (lesbian/gay/bi/transexual) families there are at the school, but there are usual 2-4 kids of such families in each class, so simple math would put us around 30.

Maybe 20 families showed up.

It was a great event.

My 9 yr old asked me where we were going. I said to a party. "Who's birthday?" Not a birthday, a party for gay and lesbian families.

"Oh, I bet A will be there."

No, A's families is not gay.

"Oh, but K's family will be there."

No, they aren't gay either.

"But he has two dads and a mom" (like our family).

No, I don't think his two dads are gay (step dad and divorced dad).

"But K told me his family was gay. They went to the Gay Parade."

No,  K's family is not gay, but to be honest, I've never asked. Maybe there is some truth there or maybe my son is just trying to fit his best friends into this category his own family belongs in.

That's the thing about us gays, we are assumed straight until proven otherwise. Convenient when needed, uncomfortable and narrow otherwise.

It was great to be with other gay and lesbian families (don't think we have transgendered families yet, though I know of two in my other life). The stories of how we create our families and protect them even in this überliberal city are stuff of novels.

The love and attention devoted to these children is monumental. Retweet this button on every post blogger

2009 Halloween Class Video


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Sample Problem from Negative Numbers Test


How can we show numbers using chip boards for positive and negative integers.

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Keep Up! Ask Questions! YOU CAN DO IT!



Keep up.
If I could give just one piece of advice to my math students, this would be it: Keep up with the class. I’ll say it another way: Don’t fall behind. “Getting behind is academic suicide.”
To an extent that’s true in any field, of course, but it’s particularly true in your math courses. More than any other field, math is relentlessly cumulative. Almost every class depends on what came in the immediately preceding classes. If you don’t quite get the material in one class, you need to learn it yourself right away or you can pretty much expect to be lost in the next class.
Since it takes a huge effort to catch up once you fall behind, your best strategy is not to let yourself fall behind. If you don’t understand something, deal with it right away. (Very few things magically become clear over time.) In class, ask a question. Don’t wait: your brain will be nibbling at the thing you didn’t understand and that will distract you from the rest of the lecture.
Outside class, you have a little more time, but still make sure to get all your questions answered by the start of the next class. Start by reviewing your textbook. If you need to, come see Glenn on most Wednesday mornings before school, or at the very least, send him an email. Talk to your friends who might be able to help. Or your Parents, Tutors or any other older person who knows something about math.
If you have to give one course short shrift because you don’t have enough time one week for all your classes, don’t slight the math class. I say this not because math is better or more important than any other class, but because the penalties for falling behind are more severe. In most classes you can usually understand most of one lecture if you didn’t understand the previous one; in math that’s very often not true.
What if you do fall behind? It can happen even to good students. In this case, my advice is to put in extra effort and work through the missed material in order. Since the concepts are sequential, it will be pretty inefficient to try to study what the class is studying if you haven’t mastered the previous week’s work. Stick with the same order that the class followed, but put in the extra effort to catch up as quickly as you can while still learning everything.
Be sure to let me know what happened; I may be able to give you specific advice or help to use your time most effectively. If I know you had a problem but you’re trying to catch up, I will probably be willing to work with you, possibly even to cut you some slack about quizzes if the problem was beyond your control.
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My Friday Five



If we reflect on what we have learned in a week, it can be pretty darn amazing.

This week I learned:

1.  That the SF Bay Bridge is nearly unpassable at this point in history when trying to cross @ 5:30. Now all the traffic reports make sense to me (My commute inside of SF is less than 5 minutes, no traffic).

2.  My student benefit from slightly reducing the homework load, giving them up to 20 minutes a night of math work, hopefully no more. I can't control the texting, IM'ing and FB life, though.

3.  I learned that 3/4 + of my students have a very positive impression of math class and my teaching style. The other 1/4 are not necessarily uncomfortable, just more cautious.

4.  It can be hard but illuminating to look at videos of the class. I was impressed by the calm nature of the class, the student focus and level of academic acumen is high, very high.

5.  I learned of a way of thinking of teaching as "marching into confusion, then marching out". I like this way of thinking of teaching: if everything is always crystal clear via teacher explanation, then the student doesn't experience what it really means to be a "life long learner". Retweet this button on every post blogger

As we write our student comments, Mathguide reminded me why they can be so difficult



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When did I get this old?


Is it the tie?

The expression?

The format?

Oh, dear....


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8th Grade Algebra class time 2009


I like the environment of this classroom. Pretty focussed on algebra (save a couple)

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Interesting: How involved (as parent) should you be?



Across-the-board declines in achievement in middle school have been well documented, and the challenges associated with parenting and teaching students who are developing their own sense of autonomy and independence have given rise to a large body of research. But there hadn't yet been a systematic review of existing studies to determine which types of parental involvement yield the best outcomes for adolescents' achievement.


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Glenn Explains Integer Product Game 2009


Looking for a quicker style of explaining things.

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Guiding Quote for my 2009 Teacher Inquiry Project


"You never find yourself until you face the truth." ~ Pearl Bailey Retweet this button on every post blogger

Taming the Wild Corner, version 4.0


Nature is marvelous and in short supply in San Francisco. My school is bordered by a freeway to the east and many blocks of treeless streets in the other directions. However, as you pass through the front gate, you find a fascinating garden we call the Adventure Playground. I use this garden to consider the nature of school curriculum in general and math instruction more specifically.

David Perkins describes a continuum between tame and wild ideas in school curricula. Tame ideas are closed learning experiences (e.g. five paragraph essays, long division and textbook science) Wild ideas are unpredictable experiences. These can be harder to identify in most classrooms, though examples such as writers’ workshop, project based math and inquiry science certainly are alive and well in many schools.

There is a huge diversity of garden aesthetics around the world, but consider present day California. In irrigated lawn is a tame garden in arid California: little diversity and great predictability. It produces minimal benefit other than the satisfaction of having sculptured a landscape. At the other extreme, the very “wildest” of gardens would be nature left to its own resources. It produces some food which might be difficult to harvest and potentially dangerous to the harvester.

A garden designed to produce food as well as pleasing aesthetics would fall somewhere between these two extremes. This garden represents the sort of sweet spot between wild and tame that many educators aim for. Yet there a wide range of opinions of what appropriate curricula looks like.

Educators work to produce a rich bounty of ideas. They are charged with “taming the wild” so that students can make sense of things. The question that always needs to be asked is: have some ideas been tamed too much? Has the productive garden turned into the irrigated lawn?

Few subjects in schools inspire more “taming of the wild” than mathematics. While the field of mathematics is a vibrantly wild one, it has a long history of tameness in school. Take the classic rhyme to remember how to divide fractions: “Yours is not to question why, simply invert and multiply.” Critical thinking is often weeded from math, It feels neat, defined, and controlled. For many, it feels like the math we learned in school.

But there is a romantic notion about “real world” math that feels entirely wild. Students construct their own understandings and methodologies in math. Some are successful, while many struggle with this approach.

I have seen the effects of overly tame or unduly wild teaching. I have carefully parsed out equations for determining slope of a line without letting them muck around in the patterns. Later, I would observe students freeze when faced with similar problems out of context. They were starving on a flawless lawn.
At the other extreme, I would ask my 4th and 5th graders to “invent” different methods for multiplying multi-digit numbers. Some students did have inventive ways of doing this arithmetic work, but their successes rested more on their home experiences than on their inventive minds in class. These students were starving in a dark and lonely jungle.

We must tread thoughtfully in a zone between the excessively tame and the dangerously wild ideas. I have found a comfortable balance with Problems of the Week (POW’s). These problems are complex, messy, somewhat obscure but not impossible to solve if one persists. One of my favorite POW problems involves a camel crossing a desert:

Camila Camel's harvest consists of 3000 bananas. The market place is 1000 miles away. Camila must walk to the market and can only carry up to 1000 bananas at a time. Being a camel, Camila eats one banana during each and every mile she walks (so Camila can never walk anywhere without bananas).
How many bananas can Camila get to the market?


This problem is wild because it is not solvable by simple algorithms, yet it sufficiently tame so that many people have some entry point to start it. While the necessary math skills are not complex, their application often inspires creativity. It has a best answer but actually there are many good answers that are acceptable approximations.

If we succumb to breaking down math to its bare components, we teach how to take care of a lawn rather than promote diverse gardens. Let’s look at math from an organic gardening perspective. Let’s wild the tame corner! Retweet this button on every post blogger

Presenting a POW to 8th Grade Nov 3, 2009


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Working with y=mx+b Nov3 2009


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Teacher Inquiry: Some more videos


So, as I've said in earlier posts, this year I am involved in an inquiry project with teachers from my cohort of the Bay Area Writing Project.

My question: What is the nature of discourse in my middle school math class?

I have several sources of information.

The one I am focussing on using at this time is video. I want to see both how I present material (ideas, cues, vocal style and physical style), how my students react to what they hear from me, and how they contribute to the conversation: both constructively and not.

I will be posting two short videos: one where I present the latest Problem of the Week and another where students are working at their table groups with y=mx+b.

I notice in both videos a very relaxed environment. My voice is extremely understated. I sound nice, I respond to students clearly, but at the same time, I speak slowly and a little lilt is in there. I believe my intention is to cue when what I say is important to hear: but I wonder whether this is what my students are hearing from this.

It was interesting, though, that when they asked about the video came (FLIP), I told them I was examining how I spoke in class, in part due to some feedback that I have a monotonous voice. Several key players in the class emphasized that I shouldn't worry about this: that I shouldn't have to change my voice. I think I agreed with them superficially, but I also recognize that I can pick up the speed, be a little less meditative in tone, while still maintaining a comprehensible flow of information in the class. Retweet this button on every post blogger

Story of One on Google Video.


Time to recycle that DVD, now I can find it on line. Why keep the physical copy around to collect dust!

Same thing is happening to my texts.

I LOVE IT!

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Native American Sweat Lodge = Imagery for Negative and Positive Integers



Imagine a traditional Native American sweat lodge:




In order to heat these up, stones were placed in fire until very hot, then brought into the lodge:



Those would be your positive integers.

Now, let's jazz this imagery up.

Say we could bring in blocks of ice.



Those could be thought of as negative numbers.

So, when you want to raise the temperature of the sweat lodge by one degree, place in a hot stone +(+1)

When you want to lower the temperature, you can either take this stone our -(+1)

Or you can put an ice block in +(-1)

Get the point?

There are lots of variations you could play with in this imagery.

Try it yourself and let me know.
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We Are All Connected (WITH ENGLISH SUBS). Symphony of Science.


Fantastic group of physicists explaining the universe, put to music!!!!!

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My Virtual Staff Lounge



     If we accept the notion that schools function, in large part, as transmitters of knowledge to subsequent generations, then let’s also recognize that this transmission is in the throes of evolutionary change. I feel the change all around me. Computers are fast replacing textbooks; interactive whiteboards are supplanting static ones; email overtaking paper memos and on-demand Web-based video pushing aside those VHS tapes or DVDs.


Like many educators, I used to think I could choose what roll these new technologies would play in my professional life and classroom. Recently I decided that this was a false choice. I cannot selectively ignore technological change. I can isolate  myself, true, but I must always remember that I am not educating my students for today’s world, but rather, for a future world in which these technologies will dominate. Do I over romanticizing the paper past and under appreciating the digital future? I did not become a teacher to blindly support status quo 20 years ago and I summarily reject letting myself become one today. 


So how do I keep up? The answer is simple:  stay passionately involved with educators around the world on a daily basis. Thanks to technology, this is now a reality. I am convinced that I am the most effective teacher I can possibly be when accompanied by a diverse group of educational thinkers and practitioners. This article is the story of how my professional circles have evolved over the years and where I hope they will go in the future.


If you have not yet heard of this acronym: PLN, I will explain. It stands for Personal Learning Network. While the term might be new, the idea is not. Teachers have always had learning networks–people we learn from and share with. Teachers are information maniacs at our core. We are also intensely social beings. Put these two characteristics together and you have defined PLN.


The nature of my PLN has changed since I first started teaching in 1987. This evolution is part developmental and part technological. I tend to divide my career into three episodes that are characterized by what I was collecting at the time: paper, computer files or web links. Let’s start with paper.


In 1987 the Internet only existed for people I did not know yet. I was a new teacher, by far the youngest staff member at my school and the only man except for the janitor. I shared a kindergarten room with a veteran teacher who was polite but cautious about the new ideas I brought about literacy and numeracy. I was not quite sure if teaching was going to be my profession for the long term. Few staff members went out of their way to change my mind about this.


My personal learning network at the time consisted of the “New Teacher Project”, a teacher mentoring consortium run by the local university. They provided mentors and workshops for a cohort of 20 first and second year teachers. This cohort of teachers, along with our mentors, formed the core of my PLN. We met face to face in weekly meetings. Most professional information we shared came from articles or books we had read as well conference or workshops we had attended. We bought books in bookstores and the conference handouts came back in suitcases. Anything we thought was valuable was photocopied and filed for future reference. Our goal was to fill the file cabinet with enough interesting material to cover the school year. I spent many hours coloring handmade books, glueing together math kits and drawing little student versions of The Very Hungry Caterpillar and Where The Wild Things Are.


By the mid 1990’s I decided that I loved teaching. My PLN had expanded considerably. I had a bursting file cabinet, overflowing collection of books for my classroom library and I was on my 3rd personal computer. I was intricately involved in District curriculum committees. I worked as staff trainer for a textbook company and I was studying for my masters degree. I regularly met with fascinating teachers from all circles. Perhaps it was 1996 when I sent my first email to a colleague at my school. We shared little secrets from our classroom experiences. We also share information about books we read, though we still had to buy them in a store. I saved bookmarks for website I liked, but still printed out pages for my files. However, no matter how large my PLN had grown, it was still comprised of educators I met in person.


This started to change just about the time I realized how important the personal computer had become to my entire teaching style. No longer was I struggling to figure out how to “teach technology. Rather, I was writing lesson plans, developing materials for my students and colleagues, creating elaborate graphic organizers and publishing student work. The computer had stopped being an exotic toy. It was now my tireless work horse. I was reading web pages like I used to read magazines in a library.  I stopped filling my file cabinet with paper and instead collected computer files, first on floppy disk and later on hard drives. It was my purchase of a laptop in the late 90’s that spelled the eventual end of my two file cabinets and the reams of paper held within. 


My PLN started to evolve in unexpected ways. Emails would arrive to my inbox from people who had heard of me through word of mouth. I worked for a different textbook publisher, but never actually met my contact until the very end our working relationship. I completed my National Board Certification with the support chat rooms and web-based bulletin board forums. I started noticing teacher created websites, called blogs, where a huge variety of opinions   were being expressed. On occasion, these same blog postings had commentaries written by other people, not always teachers. Sometimes the debate was trivial, but at other times, it was heated, intelligent and enlightening. I was honored to even be able to read them, much less comment myself.


In many ways this new world of teacher written blogs became my therapy for my growing frustration with the intense professional pressure to “teach to the tests”. I could identify where similarities existed not only across the country, but the whole world as well. I could also identify important differences that allowed me a greater perspective on the state of education. 


Interestingly, when I moved over to an independent school, the possibilities for creative instruction and project based learned exploded for me, but my physical PLN shrunk dramatically. I was no longer a part of a large school district, which while often much maligned, always guaranteed me a large, vibrant community of dedicated educators. My current colleagues are also a vibrant group of educators, but I am the sole 7th and 8th grade math teacher. I continually run the risk of becoming an insular, out-of-touch teacher.


Lucky for me, this has not been the case.  These past couple of years have seen a tremendous international expansion of my PLN amazing. While I still share and collaborate with my school colleagues, I am also sharing ideas with amazing teachers from all over the world.  Information is waiting for me each morning in my inbox from discussion groups.  To be honest, the sheer volume of information available can be overwhelming at times. But technology has give me the tools to be selective with this information.


One of the most important evolutionary changes in my PLN has been how I meet and communicate with people. This is where the technological advances of the modern Internet, sometimes referred to as Web 2.0, come into play in ways that are controversial to many teachers. I attended a workshop called Math 2.0 in which the presenter informed the (mostly) over 30 crowd that “email is so last century, now it’s about Facebook and Twitter.” It was thanks to that presenter that I finally took Twitter seriously and it has been a saving grace of my career.


Twitter is like some huge, noisy teacher’s lounge, like the type I always imagined  I would find in one my schools some day. Everyone is talking at once. I might be talking with one or two teachers in the lounge, while catching bits and pieces of other conversations around me. People come in and out of focus in this lounge. Every once in a while I share a good piece of info, perhaps a website I visited, or a lesson that went particularly well, or a posting on some bulletin board (virtual) I saw. If I have a question or doubt, I put that out as well and often receive responses very quickly.


I have control over who I allow to enter my virtual lounge because unlike chat rooms, I choose to follow (or if the offend, to unfollow) people. Twitter is a web based social networking site, like Facebook, but I use a program called Tweetdeck because of special features such as lists that allow me to create an elite group of contributors I find particularly enriching. I sometimes think of Twitter as a huge magazine rack in some international book store. I can browse around the covers, notice headlines and stop when something particularly catches my interest. Most people I follow on Twitter are educators like myself, but I also follow educational psychologists, brain researchers and political wonks who I find thought provoking.


The power of Twitter lies within its simplicity and its dynamism: unlike other Internet forums, topics are set on the fly and don’t dwell in linear pathways. The cap of 140 characters per “Tweet” enforces brevity and actually encourages spontaneity. Much of what goes through my Tweetdeck are links to blogs and websites recommended by people I respect, much like the articles we photocopied for ourselves 20 years ago.
Here is a sample of Tweets from people I follow:




Reading "A Math Paradox: The Widening Gap Between High School and College Math" 




"If we knew what it was we were doing, it would not be called research, would it?"
~ Albert Einstein




New blog post: "My Students Are Visual Learners, Maybe Their Parents Are, Too" Fighting fire with fire. http://is.gd/4JA46




Nuclear Accidents and the Origins of Superhero Origins: http://tinyurl.com/yjfocp4




"Stay the course, light a star, change the world where'er you are" Richard Le Gallienne






The types of discussion I have and the information shared in my PLN has not actually changed very much over 20 years–what works in class, how are my students learning, how can I become a better teacher. The medium is not longer paper exchanged in face to face meetings. What has changed, and dramatically so, is how I meet other educators and thinkers, where we discuss ideas, and how we share information. I meet them online. I learn from them online. I share with them online. And therein lies the dilemma. Whenever I mention an idea I have gleaned from Twitter to a colleague, there is a funny sort of silence. Twitter is such a new phenomenon that there is a lot of misunderstanding of its true power. From afar it can seem like 140 characters sent off anonymously would only spell trouble. But it is really like paper and pencil which create amazing works of art as well as scribbling those horrible notes during class. Twitter, like most all human communication, is dependent on human intention. The nearly 600 people I follow on Twitter show the highest professional standards I have ever seen. And if someone slips, I simply unfollow them.


My challenge to anyone interested in exploring the potential of Twitter to envigorate their professional engagement is to try it for a month. After that month you can reflect on the relative benefits and make a better informed decision on whether you will adopt this technology.


You need to create a list of interesting people to follow. Once you follow them, you can look at their lists and decide to follow those people. You’ll need to understand a few basics of Twitter communication style:





@ – when placed in front of a twitter name, it allows the person to see a reply to them under Replies


RT: – you this to retweat a tweet that is worthy of sending again


# – hash tags to track specific conversations (try #ascd in Twitter Search to see what I mean)







Post several Tweets a day: something great (or a struggle) from your teaching or learning, a question for the day. When you see an interesting Tweet, reply to it. You might find yourself engaging in a fascinating conversation in no time at all.


This is a great website to find other, like-minded educators to follow:




These are some particularly interesting people I follow closely on Twitter.


Angela Maiers  @angelamaiers :excellent thinker about education
Larry Ferlazzo  @larryferlazzo Amazing provider of resources
Vicki Davis  @coolcatteacher : one of the most followed teachers on Twitter
Mr. Tweet  @ MrTweet - provides you with personalized recommendations
Russel Tarr: @russeltarr History Teacher: incredible, web-based resources 
Ira Socol: @irasocol  Deep thinker of educational policy




My PLN has evolved in interesting and unpredictable ways. The virtual staff lounge I currently sit it in loud, rambuctious, irreverant and exciting. I invite anyone reading this join me as in the joyful cacophany of professional growth. You can find me on twitter as @pepepacha. Let the rumpus begin!




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Fascinating critique of modern US Math Education



By Joseph Ganem

How can students who have studied college level math for years need remedial math when they finally arrive at college? From my knowledge of both curricula I see three problems.

1. Confusing difficulty with rigor. It appears to me that the creators of the grade school math curricula believe that “rigor” means pushing students to do ever more difficult problems at a younger age. It’s like teaching difficult concerti to novice musicians before they master the basics of their instruments. Rigor–defined by the dictionary in the context of mathematics as a “scrupulous or inflexible accuracy”–is best obtained by learning age-appropriate concepts and techniques. Attempting difficult problems without the proper foundation is actually an impediment to developing rigor.

Rigor is critical to math and science because it allows practitioners to navigate novel problems and still arrive at a correct answer. But if the novel problems are so difficult that a higher authority must always be consulted, rigorous thinking will never develop. The student will see mathematical reasoning as a mysterious process that only experts with advanced degrees consulting books filled with incomprehensible hieroglyphics can fathom. Students need to be challenged but in such a way that they learn independent thinking. Pushing problems that are always beyond their ability to comprehend teaches dependence–the opposite of what is needed to develop rigor.

2. Mistaking process for understanding. Just because a student can perform a technique that solves a difficult problem doesn’t mean that he or she understands the problem. There is a delightful story recounted by Richard Feynman in his book: Surely You’re Joking, Mr. Feynman!: Adventures of a Curious Character, that recounts an arithmetic competition between him and an abacus salesman. (The incident happened in the 1950’s before the invention of calculators.)

The salesman came into a bar and wanted to demonstrate the superiority of his device to the proprietors through a timed competition on various kinds of arithmetic problems. Feynman was asked to do the pencil and paper arithmetic so that the salesman could demonstrate that his method was much faster. Feynman lost when the problems were simple addition. But he was very competitive at multiplication and won easily at the apparently impossible task of finding a cubed root. The salesman was totally bewildered by the outcome and left completely discouraged. How could Feynman have a comparative advantage at hard problems when he lagged far behind at the easy ones?
 
Months later the salesman met Feynman at a different bar and asked him how he could do the cubed root so quickly. But when Feynman tried to explain his reasoning he discovered the salesman had no understanding of arithmetic. All he did was move beads on an abacus. It was not possible for Feynman to teach the salesman additional mathematics because despite appearances he understood absolutely nothing. The salesman left even more discouraged than before.

This is the problem with teaching eighth-graders techniques such as matrix inversion. The arithmetic steps can be memorized but it will be a long time, if ever, before the concept and motivation for the process is understood. That raises the question of what exactly is being accomplished with such a curricula? Learning techniques without understanding them does no good in preparing students for college. At the college level emphasis is on understanding, not memorization and computational prowess.

3. Teaching concepts that are developmentally inappropriate. Teaching advanced algebra in middle school pushes concepts on students that are beyond normal development at that age. Walking is not taught to six-month olds and reading is not taught to two-year olds because children are not developmentally ready at those ages for those skills. When it comes to math, all teachers dream of arriving at a crystal clear explanation of a concept that will cause an immediate “aha” moment for the student. But those flashes of insight cannot happen until the student is developmentally ready. Because math involves knowledge and understanding of symbolic representations for abstract concepts it is extremely difficult to short cut development.


http://www.aps.org/publications/apsnews/200910/backpage.cfm


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School Halloween Traditions: What makes them stick?


Today, October 30th, was my school's annual Halloween carnaval. This is my fifth year participating in this tradition. The middle schoolers organize activity booths around the playground, and the 8th graders put together a haunted house. The elementary kids go to the music room to perform Intery Mintery and then on the playground for a mini Halloween parade. Then it all breaks up and they head over to the booths.

I used to really love Halloween. Not quite so much any more.

25 years ago, as a kindergarten teacher, I would do intricate units based on "Where the Wild Things Are" (let's not forget it was a book long, long before it was a movie). As a 4th and 5th grade teacher I organized a mini carnaval, based on my own fond memories of my elementary years. I included a dunking for apples activity which always got out of hand, but that was ok, because it was Halloween.

When I came to the middle school in my current school, I was asked (appropriately) to participate in the existing traditions, such as the 8th grade haunted house (I was and am a 8th grade advisor). I try to find the joy in it, but the 13 year old mind is already onto other things and Halloween is a kitchy, campy event for them. They prefer the sardonic, sarcastic and sometimes disrespectful to the honest, fun going feeling of the younger kids. I find myself barking at them (or wanting to, at least, because as the video shows, I am rather soft spoken). The clean up is misery: what 13 year old in their right mind really wants to clean up? At least, I haven't met them yet, if indeed they exist.

So I have slowly been losing my enthusiasm for Halloween. That is a problem because I have a 9 year old son who is just coming up into these traditions with his own brand of enthusiasm and glee. I have to match the energy, at least in part.

I have been thinking a lot about traditions. Where do they come from and why are they maintained? What kinds of traditions stick and what others slowly sink to the wayside.

I have tried to create certain types of traditions myself. I tried for Talent Shows for the 5th graders in my former school and Math Fair in my current one. But there is no evidence that what I try to do actually sticks. And that is the same for nearly everyone I know.

So, traditions are mysterious things for me. I love the idea of them, and yet, they represent a certain aspect of conservative human nature that I wonder about. Retweet this button on every post blogger

Guiding Quote for my 2009 Teacher Inquiry Project


as i watch the videos of my practice, my voice, my persona:

"Courage is fear that has said its prayers." — Dorothy Bernard Retweet this button on every post blogger

Bringing the Math Book ALIVE!



Why wasn't this in the teacher guide?

Check out the youtube video of my students running this simple relay race.





We simply did in REAL LIFE what the book presented in drawings.

By taking 10 minutes outside, we physically experienced the problem. Then we can come back in and work more enthusiastically and energetically with the questions.


Activity from Connected Math 2 Series: 7th Grade, Accentuate the Negative

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How I presented Surveymonkey.com Teacher Evaluation


I am on a constant search to be the best teacher I can be.

This year I presented my students with a teacher evaluation form. (I am publishing relevant results as time permits).

This is a video of how I presented the survey to  my 7th graders.

I look at this video both for the content of my presentation as well as the tone, voice control and communication style.

And yes, I am a rather low key speaker.

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Math TOO hard for PARENTS!!!


This NY Times blog post speaks to nearly every parents I have spoken to about math for the past 15 years. It is hard and it is time we recognize this. But at the same time, most if not all of my students are getting along relatively well.



Math’s Too Hard for a Parent’s Help



When my children were toddlers I told my science-researcher husband that he had better stay healthy, and look both ways before crossing the street, because if anything ever happened to him our boys would never get through high school math.


Numbers have never been my strong suit, and as it happens I couldn’t really help with math and science homework sometime in middle school. Not only was whatever I once knew rusty, but it was also out of date. “They don’t teach it like that any more” I was told, and then dismissed.


Now comes a study by Penn, Schoen and Berland Associates on behalf of Intel, to tell me I am not alone. Parents would rather talk to their kids about sex and drugs than math and science, the survey of 561 parents found. More than half say they have trouble helping their kids with these subjects, and it gets more difficult as the students get older.


There are a variety of reasons for this. Some, like me, simply don’t understand the subjects well enough to teach them. Others, like Curtis Silver, who writes about parenting for the Wired website, say they have too deep an understanding of the subjects. “Even I have trouble helping with math and science sometimes,” he writes. “Not because I’m not knowledgeable, but because it’s hard to transfer my knowledge to that of an 8-year-old.”


Whatever our reasons, it’s not as if our children are doing stunningly well without us. The National Assessment of Educational Progress report released last week (you may have heard it referred to as “the nation’s report card”) found that less than 40 percent of fourth and eighth graders are rated “proficient” or above in math.


Are you qualified to help with math and science homework? Are your child’s feelings about the sciences affected by your own? 


http://parenting.blogs.nytimes.com/2009/10/30/maths-too-hard-for-a-parents-help/

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Teachers; Think before we speak


Words can be very uplifting, or they can tear you down. It was a tough week or two, and I was just not myself.  One student stopped by to say hello and check on me, it was that simple.  


At that moment everything changed for me just a little bit, just enough.


Words carry a lot of power and we need to be careful, whether we are using email, or face-to-face.


We all need to:   


Think before we speak.  


If we think it may cause hurt, it probably will.  Sleep on it and try to reword what we need to say.Never shoot from the hip (or lips). Try to put yourself in their shoes. Remember that the written word can be misunderstood, say it in person. Most importantly find a kind word to say whenever possible. Retweet this button on every post blogger

Teacher Eval by Middle School Students: an inspiration


"Good teachers are those who know how little they know. Bad teachers are those who think they know more than they don't know." - R. Verdi Retweet this button on every post blogger

Student Comments on teacher evaluation...part 2


Glenn tries to help you to speak up and be active in the class.


This is a particularly interesting question for me. The best gift I have received recently were two comments from parents of extremely shy and quiet students who say they feel very supported and comfortable in my class. Since I am a big, white man, I would say this is a great event.


Some comments:


I don't like to talk in class and Glenn wants to help me do this better


I think that Glenn does a very good job of encouraging kids to speak up and be active in class


Lately Glenn has been encouraging questions and saying not just myself but also other people.


But an interesting type of comments arose:


We don't have many class discussions, so it's hard.


We rarely do activities that involves the whole class and if we do he only picks people who are raising their hands. but if those people have gone already then he either picks them again if they want to go up or he'l just randomly pick sombody else


This is a truth: I don't have much whole group discussion. In fact, I try to limit the whole class discussion to less than 10 minutes out of the hour or so of class. Most of our class time is devoted to math work in groups, partners or individual.


A couple of other comments:


He calls on me when I have no idea what the answer is but not when I am raising my hand and I know the answer. I would like to be called on when I know the answer not just when I don't know and the whole class laughs.


You get kids back on task if they are being distracted :p


These last two comments encapsulate a typical day in middle school math classroom. I wish parents understood this better. Retweet this button on every post blogger

Comments from the student evaluation...


 Glenn knows math well and is prepared and organized when he teaches it.


Almost 90% of the students gave me credit for knowing my math and being organized in how I present it.


Typical student comments:


You are almost always prepared in class


Glenn does know math well but sometimes when he writes on the board it is not that neat and it can be hard to understand.


Glenn knows what he is teaching us and uses the SmartBoard effectively to teach us.


But I detect a little stress behind these numbers:


Glenn knows math really well but he doesnt teach us how to solve it the best way. he does the problem but he doesnt go into detail to show you how to do it.


He knows math well and has an organized way of teaching different concepts but a lot of the time we just have to learn things from the math book which is not always helpful.


I know that Glenn knows how to do math well but sometimes he won't explain his way of thinking so that we can get a better understanding of how to do a problem.


Sometimes he switches the schedule up and the original plan wasn't that organized either.


 These last comments reflect a very common tension in my math classes. I try to lead students to their own discoveries. I want them to wrestle with the problems we deal with. I avoid giving direct answers to problems until I feel my students are truly lost.


Nevertheless, it is a very common perception that math should be learned in an environment of direct instruction where methods are taught by the expert (teacher) and practiced by the student in carefully measured segments.


I resist telling my student "how" to do a problem, but I feel I could improve the way I explain my philosophy to my students and their families.

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As student grades and report cards come upon us...


I set up a survey on www.surveymonkey.com for my students to evaluate my performance as their math teacher. It seems fair that they get to have a say in explaining their experiences in school. The survey was entirely anonymous and only took about 10 minutes for the whole class to fill out. I included spaces for comments. Later on I will post some of the more salient comments, but this is the initial results of the class according to the rating system I gave them:


The number rating stands for the following:
1 = rarely
2 = once in a while
3 = sometimes
4 = most of the time
5 = almost always



Glenn understands math and is prepared and organized when he teaches it.
87% rated this as a 4 or 5

Glenn listens to your point of view, even if he does not always agree with it.
60% rates this as a 4 or 5

Glenn tries to help you to speak up and be active in the class.
48% rates this as a 4 or 5


Glenn is flexible with your needs as a student (i.e. homework, schedules, classwork, groupings, extra help).
67% rate this as a 4 or 5

Glenn is wants to learn from students and change things to make them work better.
59% rate this as a 4 or 5



I have an overall positive impression of these statistics. When I separate out the 7th grades from the 8th grades, I find the 7th far more positive overall, but since there are only about 30 students at each level, there are may not be enough data to accurately say more, at least numerically (remember: I am the math teacher).


The statistic I am happiest with is the one on flexibility because it has been a professional goal of mine to help my students make good, reasonable and logical choices about how to meet their class requirements. I also don't believe that HOMEWORK should be used as a policing tool on kids and especially on their families, at least at the Middle School level.


The statistic I want to examine more closely is the participation one. There were many comments of students feeling left out or pressured to give correct answers when they don't have them. I want to address that perception, but need to consider the sources and collect further data on this one. I suspect that many math teachers can relate to students feeling this way.


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Good Ol' Abe






"The best thing about the future is that it comes one day at a time." -- Abraham Lincoln Retweet this button on every post blogger

Cool Bike video I used to introduce a systems of equations problem


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Quote


A genius is just a talented person who does his homework. -Thomas A. Edison Retweet this button on every post blogger

What I learned from karate this weekend....



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KenyonFamilyKata2009



This blog is not a family journal, but karate and my 9 year old son have both played critical roles in my continuing understanding of education and the human condition. This is a video of my son and I competing in the Karate tournament at our school this year. The change from even a week ago to this event is remarkable. When pressure presents, we humans are able to move to higher ground.

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Reflective Response to: 10 facts about learning


This morning I was reading a blog post by Donald Clark, Brighton, Sussex  I don't really know a lot about him from his blog, but his post dealt with 10 scientifically proven education precepts.  I tend to like listed items, so I started to read what he posted. I was very impressed by Donald's points, but I am more than a little uncomfortable with the "scientifically proven" title. Nevertheless, Iwrote this reflective response of my own teaching practice based on it:

10 facts about learning that are scientifically proven and interesting for teachers:       

1. Spaced practice

Perhaps the most significant fact we know about learning. Knowledge is easy to learn but hard to retain. We forget things quickly and that the most effective way to prevent this forgetting is to practice at spaced intervals over time. 



Math class needs a little homework every night, but not overkill. 15 - 20 minutes maximum. Don't do it all in one bang, even if it is easier to "get it over" or it fits a schedule better.




2. Cognitive overload 


Preparation of material in terms of size, order and engagement, leading to weak encoding, a lack of deep processing then poor retention and recall. Almost all courses are too long, present material in the wrong way and lead to unnecessary forgetting. Simplify to prevent cognitive overload.
One or two main ideas should be presented in class and should be the entire focus of the lesson. I think books that try to make many different connections or present a lot of preview/review material on each page are doing a disservice. This is why I like our College Prep Math (CPM) algebra text and the Connection Math series.


3. Chunking
Perhaps the easiest and simplest piece of learning theory to put into practice. Chunking means being sensitive to the limitation of working memory. Less is more in learning and distilling, rather than enhancing, elaborating and creating lots of distracting noise, is a virtue in teaching. 
Whenever a teacher or a student can put a couple of ideas or skills into a “package”, they are creating a far greater possibility of success. This is one reason why I like the algebra tiles with their specific set of rules that help chunk together ideas of negative numbers, equality and distributive property into one “game like” scenario.


4.  Order
The order you learn things is critical to how they will be stored and recalled, yet education and training continues to jumble and confuse content. Learn things in the wrong order and you’ll end up having to unlearn.
This is crucial. When I talk to math educators, or educators in general, I often leave wondering if they have a sense of scope and sequence of the material they are covering. Does it make logical sense? Did they create it or are they simply using the text guidelines. Ownership of the sequence guarantees a better outcome in my experience.


5.  Episodic and semantic memory
Once you understand that the things we learn are stored differently, i.e. we have different types of memory, then you’ll be more sensitive to the necessary differences in teaching. We still have far too much reliance on text (semantic) for subjects that need a visual (episodic) approach. 
This is hugely ignored by many, many educators. School is so utterly dependent on text as well as oral discussion, that other ways of learning and using the material are marginalized. In math, for example, I firmly believe in the use of manipulatives and diagrams to demonstrate the concepts. This is even the case, I dare say, with algebra tiles, which present key abstract concepts in a concrete fashion, albeit a complicated one at best. To say that algebra can be anything other than abstract is to miss the point of it entirely. But to also say that we must rely on odd equations and number/symbol manipulation on paper is to reduce it to an exercise in pencil pushing. Algebra tiles, as difficult as they are for some people, help create the episodic, visual, action oriented memory that assists in deeper learning.


6.  Psychological attention
Learning does not take place without psychological attention, so setting up classrooms and scenarios that inhibit attention, or distract from learning, is massively counter-productive. The bottom line is that much learning is best done on your own or one-to-one.
I need relative quiet to learn. I can listen and absorb classroom or lecture material, but I need time on my own to make the learning my own. That is why teaching has been such a powerful learning experience for me. I often find myself in chaotic classrooms where learning is sporadic at best. Walk into a calm, focussed classroom, where everyone is on task, and the difference is notable. I don’t see enough of this, to be honest.


7.  Context
We know that recall is enhanced by learning in the physical context in which one is expected to perform. Real world uses need to be pervasive.
The “when will we ever need this?” question needs to be respected. We educators need good, convincing answers that go beyond the “next year” response (although that is not a bad answer to start with in my opinion). Math educators in particular fall into this trap: connect our topics, concepts and skills to other arenas: sports, sciences, history, games etc. Do that on a regular basis and our students will benefit from at least imagining the possibilities.


8.  Learn by doing
We know that we learn lots by doing, yet much teaching and training is locked into a over-theoretical, knowledge and not skills, model. 
Of course, less teacher talk and more student work on a subject. No brainer.


9.  Understand Peer Groups
We overestimate the influence of parents and teachers, and under-estimate the role of genetics and peer pressure. 
I think a lot about this as I work in the middle school. I often find myself stating something very clearly in my way, only to have it completely reinterpreted by my students two days later and having to argue for my point with them. That is why I have taken to leaving a clear paper trail of assignments to back be up. I am not 100% sure I understand the interplay between “nurture and nature” (family vs genetics), but I am clear that peer influence is underestimated by several magnitudes in schooling.


10.  Murder the myths
This is perhaps the most useful piece of scientific advice for teachers and trainers – dump the snakeoil techniques. These include learning styles, playing music while you learn, Brain Gym, left-right brain theories, NLP, stating the objectives at the start of a course…the list goes on.
This will be controversial in my circles. I don’t see any these things as evils, but many of them do become weak excuses for why somethings hasn’t been learned or taught. At best they are interest techniques to learn as individuals, but at worst, they distract from a central purpose of education to actually teach mastery of skills and concepts. Sometimes they actually distract to the point of diminishing the role of memory, of skill development, of enlightenment in the individual. They also create some impossible teaching scenarios that confuse and complicate topics to the point of absurdity. In math, for example, why algebra should be meaning centered, it can almost never be completely concrete or rule driven (“just teach me the rule, darn it!”). At its core, it is an abstract generalization of arithmetic and should not be reconstrued any other way.

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Everyday I forget something...



Forgetfulness - Billy Collins Animated Poetry from smjwt on Vimeo. Retweet this button on every post blogger

Don't want to study? Here is how to NOT do it.



Look for that perfect environment. 


(Many students think if only they found the perfect place to study, studying would be easy. Better idea? Find a reasonably quiet place and just get started. You'll get more comfortable as you get going.)

Multitask. 



(Believe it or not, some students study for all five of their courses at one session. Fifteen minutes on this subject, 15 minutes on another, 15 minutes on a third—you get the picture. But it's a far better idea to devote your entire session to a single subject. That way you build up speed, and the more engaged you get, the easier the studying will become)



Focus on the pain. 


(No Pain NO Gain, right? Students often think that the initial pain of resistance to studying will continue throughout the studying. But, surprisingly enough to many students, you'll find that the pain decreases and the enjoyment increases as you get into the material and find you can at least sort of do it. If you plan for an hour of pain, you'll never free your mind enough to get through the studying.)



Just memorize (it's quicker and more efficient). 


(It's useless to just shovel stuff into your mind that you don't understand. If you really are understanding what you're studying, you ought to able to explain the main ideas, in your own words, to someone who hadn't done the studying. Take the time to think about what you're studying—don't just prepare to parrot it on some upcoming test.)



Count busywork as studying. 


(Some students do a lot of preparing to study or getting organized for studying. But they never get down to doing the studying. Don't give yourself credit for studying when you're actually just cleaning your desk or reorganizing your music files on your laptop.)



Take lots of breaks. 


Many students think, wrongly, that if they take breaks from time to time (like about every eight minutes) they'll get through the studying easier. But the truth is, each time you stop, you also have to start. And each time you start, you have to overcome the resistance from scratch. Take a break no more frequently than every 20 minutes.



Identify yourself as an owl. 


(Many students think they can study really well late at night. Very few can.)


Cram it. 


(Many students think they can study really well the night before the exam ("I'll remember it best if it's freshly studied"). Few can. Really, you are most likely NOT the exception, even when you want to think that you are. Sorry.)



Go it alone. 


(If, in spite of your very best efforts, you find yourself hopelessly behind on your studying, always go see your teacher. He or she will want to help. The honest truth!)



Blow off two days in a row. 


(Though nobody quite tells you this, you're supposed to be studying every day of the week)



FACEBOOK!!!
MUSIC!!!!!
TELEVISION!!!!


All fantastic ways to ensure you DON'T ACTUALLY study, but get to say you did, one way or another.
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Verdania: A Mathematical Odyssey: Chapter 6: Meeting


Chapter 6: Meeting
Jake tired of his aunt’s tree obsession, so he edged away from his group and followed the gravel road into a forest of humongous trees. He was curious to find out what Jesse and the others had discovered.
The forest was dense, overgrown and quite dark, but not cold. The gravel road cut a clean, straight path through the vegetation. The same butterflies they had seen on the way from the beach flew around. They flicked their wings effortlessly.
Jake heard rustling branches up ahead. He stopped in his tracks. Was it really a good idea for him to be alone in this unknown forest? While his father was alive, they had spent their summer vacations backpacking in forests all over the country. He felt confident in his abilities to take care of himself in the wilderness, but as his father’s mountaineering accident proved, not everything can be predicted or controlled. Jake suddenly regretted heading out so far into the forest. He called out to make sure that is wasn’t Jesse and his crew coming towards them. No answer. But there was an increased rustling in the bushes and it was coming closer. Jake turned to run back to his Aunt’s group. He saw the clearing up ahead just as some sort of fabric came down over his head and engulfing his entire body. He tumbled to the ground, scraping his knee and hitting his head on some rock. The blow knocked him unconscious. 
Back at the tree, Justin was the first to notice Jake’s absence. The Captain frowned a little, then she said “Oh, he must just have gone a little ahead. Why don’t we try to catch up to him?”
About 20 yards from the forest’s edge they heard some scuffling noises. The Captain took off in a sprint, with Justin and his mother just behind her. She yelled out Jake’s name. No answer. She disappeared into the forest. When they caught up, she hunched over the gravel road examining marks in the ground. Justin thought she might be crying, but when she looked up at them, her face was a mixture of anger and fear, but no tears.
“Something’s happened to Jake. I think he was attacked, but there’s no sign of major violence. No blood or anything. I would dare say he’s been dragged away in a sack or something. At least, that’s what this mark seems to be.” She pointed to a long, shallow trough leading away on the gravel road. “But there are so many strange marks here. Some three toed foot prints, for example. I don’t get it. I didn’t say anything before, but this whole place is creeping me out. Strange marks on the cliffs, funny grooves in the road and now this. But we need to move quickly. This just happened, let’s hurry up, they might be just ahead.” The Captain got up and started jogging down the gravel road.
Justin looked at his mother. They were both scared now, but started jogging behind the Captain. Justin looked into the vegetation. What if it were some animal doing this? What if Jake had been attacked by some fierce carnivore, say a tiger (are there tigers in the Caribbean?) or some other, yet unknown animal. He knew that the Captain was a woman of action, but he wanted to slow down, get out of this forest and think out their options. He knew his mother would agree with him, but they both felt they shouldn’t just abandon the Captain.
They continued down the road for about 10 minutes when they heard Jesse and Miguel yelling up ahead. “Maybe they have Justin with them?” he thought, but as he turned the corner, he saw the Captain stop in front them.  They shut up immediately.
“Look it, guys, something’s happened to Jake. He’s been taken away. Stop bickering and focus on what’s important, will you?” They two men nodded. Then Miguel said,
“Captain, we were just looking for you. We found a massive stone door with a secret code. We just saw it close, but we didn’t see who went in. Maybe they have Jake.”
Jesse led them to the door. It seemed to be protecting some cave in the side of a mountain. Marge was studying some markings etched into the stone.  “It’s some sort of code, like a key. I think that the first four drawings present some sort of pattern that has to continue to the next three. I bet if we get them right, the door opens. My only hope, “she added, “is that if we get them wrong, nothing bad happens” She looked at the Captain ominously.



Your task:  Break the code! If you continue the pattern, what will the next three figures look like? There might be several correct answers to this puzzle, so try to find them. Explain your thinking carefully.






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Halloween Me



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This is what 8th grade homework looks like in my class...



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What have we done today to change homophobic attitudes in school?



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Great Site for Virtual Algebra Tiles




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Kevin Jennings : Create an environment of respect: what's wrong with that?


Fifty-three House Republicans who have signed a letter to the Obama administration asking for the ouster of Kevin Jennings, an official charged with promoting school safety" ignored that a key claim in the letter -- that Jennings has a "history of ignoring the sexual abuse of a child" -- is false.


The letter stated: 


“As the founder of the Gay, Lesbian and Straight Education Network, Mr. Jennings has played an integral role in promoting homosexuality and pushing a pro-homosexual agenda in America’s schools — an agenda that runs counter to the values that many parents desire to instill in their children.” 


The claim that Kevin Jennings counseled an underage youth to at least use a condom with another, older man, has been debunked. 


But that is not even the issue for me. 


The attempt to put the Obama administration off track by focussing attention on Mr. Jennings is really about the fact that he has been a tireless proponent of making schools safe places for gay and questioning youth. For some people, this seems to mean "promoting homosexuality" (alla: recruiting). It is a tired argument. Being gay is not a choice and making schools a safe place for those youth who figure out their orientation earlier than I did (congratulations to them!) is not forcing the other, straight students to question their own orientation. It is asking them to reconsider bias and prejudice. 


Somehow, gays + schools bring out the worst in already severely biased people, but also stirs hidden or suppressed biases in otherwise enlightened people. Let's not be "shocked" by what we see, as we are clearly reminded where the culture wars stand by cases like Kevin Jennings.


Check out GLSTN











Young people are coming out of a closet of denial and fear at younger
ages than ever before, due in large part to the support systems
developed for and by them over years. The coming out experience for many
young people involves an interactive process between the individual and
her or his environment, beginning often with a general awareness of
being somehow different, through denial, tolerance, acceptance, and, in
many cases, to identity integration.
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Math Graphic Organizers for Students with Disabilites



I was doing some research on differentiated instruction and algebra.

I found this site describing the use of graphic organizers in math class to help students organize and make sense of the information. I find that I use many, many of these in my lessons, not to mention manipulatives such as algebra tiles to help make a little more concrete the algebra learning happening in class.

Then I saw this diagram (graphic organizer) of how to solve a math problem. My whole approach to Problems of the Week is based on George Polya's work.


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Quote


It is within the families themselves where peace can begin.-- Susan Partnow
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"High School Week"


Being a private school, our 8th graders are hot and heavy into their "high school search". We, the teachers, hate this time, but we fail to recognize that for our private school educational environment, this is necessary. 


Our 8th graders are give a week to schedule high school stuff so as to not get quite as overwhelmed with homework, schoolwork and high school applications. It is not nearly enough time and it is too early in the year to have a reasonable impact on their lives.


Today the 8th graders and I tried to figure out what it means to be on campus during "High School" Week, (otherwise known as "dead week") and still have math class of sorts. It is not an easy thing to get your head around, especially when some of your peers are either at home or at high school shadow visits. I have them two math logic puzzles to work out, but a part from being exceedingly difficult, when one's mind is on other things, you are often not able to try hard stuff. I realized that I had overshot my goals and tried to gear back a little. Tomorrow we will see what reasonable task I can think of for them. Retweet this button on every post blogger

A Teacher's Guide To Web 2.0 at School


This slide show tells an awesome professional development story Retweet this button on every post blogger

I'm in love with a movie that I wanted to hate...


Where the Wild Things has been my all-time favorite children's book since I began teaching in 1988. It formed the backbone of my kindergarten and first grade literacy program. We would have great, wild rumpusses in my class and create huge, fantastical jungles full of "Wild Things" made from cardboard, feathers, and long, terrible claws. I must have read this book 200 times as a kindergarten teacher, mostly in Spanish, and relished in the language and in the ending question: "Did Max REALLY go to where the wild things are?"

Later, with my son, I was able to revisit the book and talk about all the monsters and their body parts, which was always a wonderfully confusing part of the illustrations.



When I heard about the movie being made, I cringed. I thought of other, terrible visions of old classics, like The Grinch or Cat in the Hat, being bastardized and parodied by "modern reinterpretations". I simply could not and would not accept that a book of so few sentences and little real story could be made into a movie worth my time and $$$.

I would not have gone had it not been for my son begging me.

For once, I am glad he did.

The movie is a testament to childhood resiliency in the face of difficult circumstances. Max trying to make sense of a world turned upside down and moving along without him, apparently. A sad, lonely boy who went a little too far and could not trail back in time to recover from his mistake. As a father I wondered if I had done right by bringing my son to the movie. Was it scary? At times for me it was, perhaps as a parent thinking about the times my own son may have felt he had gone to far or when my anger over reaches a situation at hand.

Like Max, my son is resilient and imaginative, but unlike Max, my son has not yet had to deal with difficult life decisions. I found the movie to be a masterful treatment of how we come to terms with who we are and what we bring to and get from the world around us.

I left the theater in tears and moved in ways I had no reason to expect.


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