• Matrix Transformations in GeoGebra

    by  • August 6, 2013 • Math • 1 Comment

    Last weekend I had the great pleasure of learning about matrix transformations in GeoGebra from the incomparable Todd Edwards! He was one of the organizers, along with Steve Phelps, of the 2013 North American GeoGebra Conference, held on the beautiful Miami University campus, in Oxford, OH. (I’ll write more about that soon.)

    On our long drive home, I made these:

    A traditional activity in which a triangle is transformed by matrix multiplication.

    A nontraditional activity in which a parabola is transformed by matrix multiplication.

    What do you think?

    About

    After teaching for 14 years, I now design curriculum and create digital and print instructional materials for high school and middle school math. I have also invented and am now marketing radian-scale protractors. Check out www.proradian.net! I'm very happily married and have 2 grown sons and a cat named Louie.

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