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Why Algebra Tiles?
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?
8th Grade Responses to my survey on participation
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
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.
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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Perhaps it was illusion.
Take up the reigns of TODAY.
You are needed.
Benefit of the doubt
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
The Brain: Humanity's Other Basic Instinct: Math
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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.
Ratio Riddles
- I am the ratio of the least 3-digit number to the greatest 3-digit number. Who am I?
- I am the ratio of the number ‘100 less than 949’ to the number ‘100 more than 949’. Who am I?
- I am the ratio of the only even prime number to the least odd prime number. Who am I?
- I am the ratio of the difference between 19 and 34 and the sum of 19 and 34. Who am I?
- I am the ratio of the 2nd power of 10 to the 3rd power of 10. Who am I?
- I am the ratio of the greatest common factor of 4/6 to the least common multiple of 4/6. Who am I?
- I am the ratio of the least factor of 36 to its greatest factor. Who am I?
- There are 3 numbers – 0.5, 1.5 and 4. I am the ratio of their sum to their product. Who am I?
- I am the ratio of the ‘right angle’ to the ‘sum total of all the angles’ in a right-angled triangle. What am I?
- I am the ratio of the number of sides of a square to the number of sides of a hexagon. Who am I?
Frantic parent email re: failed math program
Dear Glenn,
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
My Article Was Published Here...
Nice site explaining division of fractions
Exemplary 7th Grade POW Essay
Verdania: A Mathematical Odyssey: Chapter 7: Chasing
A thought as I go to sleep...
Mr Bott
Blogging away: Using personal blogs in math class
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
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.
Math Methods Class
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My school's priorities for math instruction (according to me)
This evening I drew a blank
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.
Has that ever happened to you? Retweet this button on every post blogger
My son's homework tonight was fun
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.
It was a special time. That is what homework should be. Retweet this button on every post blogger
Why we need textbooks, but not to depend on them.
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 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....
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.
No, A's families is not gay.
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).
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
Sample Problem from Negative Numbers Test
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Keep Up! Ask Questions! YOU CAN DO IT!
My Friday Five
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
8th Grade Algebra class time 2009
I like the environment of this classroom. Pretty focussed on algebra (save a couple)
Interesting: How involved (as parent) should you be?
Glenn Explains Integer Product Game 2009
Looking for a quicker style of explaining things.
Guiding Quote for my 2009 Teacher Inquiry Project
Taming the Wild Corner, version 4.0
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
Teacher Inquiry: Some more videos
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.
Same thing is happening to my texts.
I LOVE IT!
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Native American Sweat Lodge = Imagery for Negative and Positive Integers



We Are All Connected (WITH ENGLISH SUBS). Symphony of Science.
Fantastic group of physicists explaining the universe, put to music!!!!!
My Virtual Staff Lounge
@ – 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)
Fascinating critique of modern US Math Education
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?
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.
School Halloween Traditions: What makes them stick?
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
"Courage is fear that has said its prayers." — Dorothy Bernard Retweet this button on every post blogger
Bringing the Math Book ALIVE!
How I presented Surveymonkey.com Teacher Evaluation
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!!!
Math’s Too Hard for a Parent’s Help
By Lisa BelkinNumbers 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/
Teachers; Think before we speak
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:
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
Student Comments on teacher evaluation...part 2
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...
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...
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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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.
Reflective Response to: 10 facts about learning
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.
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.
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.
(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)
(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.)
(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.)
(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.)
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.
(Many students think they can study really well late at night. Very few can.)
(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.)
(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!)
(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.
Verdania: A Mathematical Odyssey: Chapter 6: Meeting
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Kevin Jennings : Create an environment of respect: what's wrong with that?
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
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"High School Week"
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
I'm in love with a movie that I wanted to hate...
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.
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