Graphing Calculator App for iPod and iPhone.

Just before my job changed last year, I had embarked on a modernization of some the technology I used in my 8th grade algebra class. In particular, I sold off all the TI-83 graphing calculators and used the money (plus a little more) to buy a class set of iPod Touches. I had a plan to install several very useful tools on these iPods, but my favorite one was the Graphing Calculator App:


http://itunes.apple.com/us/app/graphing-calculator/id289940142?mt=8


I loved this app because of its colorful, dynamic presentation of graphing. It allows easy zooming and moving around the screen. The TI-83's were an old technology and overly complicated to use. The iPod touches were simple, expandable and downright cool.


I recommend this app to any and all teachers of algebra.

The Incessant March Of Technology

From the The March/April 2009 issue of the Stanford Magazine




GOLDEN RULES


The article on Tom Wyman and his slide rule collection (“Calculating Collector,” Red All Over, January/February) takes me back to 1972, when Hewlett Packard introduced the HP-35, its first pocket scientific calculator, priced at $395. I was living in Palo Alto then, so I went to the Stanford Bookstore to see it. I found a gentleman standing at the counter, experimenting with the display model. When he finished, I asked him if he was thinking of buying one. No, he replied, he was just a salesman who happened to be calling on the store. I asked him what he sold and he answered, “Pickett slide rules.”


“Well,” I said, “doesn’t this new gadget have you worried?”


“Not at all,” he replied, “our slide rules can do anything this can do, at a tenth the price. Our sales are better than ever.”


Of course, the rest is now history, and so are those once-ubiquitous Pickett slide rules.


Richard A. Dirks, Gr. ’62
Asheville, North Carolina