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Pythagorean

Identifying perfect squares

I’ve been doing the distance formula in Geometry this week. I started it off with an accelerated version of my 7th grade pythagorean lesson. Basically, a quick discussion of this applet, followed by the second worksheet from this post, and finally the application to to the coordinate plane. It was a great lesson. There were […]

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2009 01 18 Comments Off on Identifying perfect squares

Set Up Lesson (2)

The pythagorean theorem expresses a nonintuitive relationship – that’s where a lot of its power comes from. Unfortunately, the way it is usually taught involves a formula (or two or even three depending on how it’s taught) and learning which numbers to plug in where. And it almost never sticks. This is the lesson I […]

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2008 05 29 Comments (1)