toolfest logo John Threlkeld

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What Math Teacher
Where

Graland Country Day School
Denver, Colorado

Next year: Geometry, Algebra II

Who
How With my students, I use TI calculators and Sketchpad. Personally, I'm pretty good with TI calculators, Excel, Sketchpad, and Pocket PCs.
Why I spent much of a spring sabbatical leave developing and refining GSP problems. I have several hundred problems put together in a variety of forms. I teach a problem based geometry class that incorporates GSP as the focal point of student learning. Students genuinely discover geometry through GSP and develop incredible reasoning skills as a result. I'm interested in writing a refined set of problems and benefitting from the feedback of others.
 

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