Geometer Sketch Pad
I thought this tool was interesting for students. However, I don’t know whether students can learn math effectively by thinking in their own heads. Although it is said that Japanese students’ math achievement has been decreasing these days according PISA (Programme for International Student Assessment), it is still among the highest in the world. I think that is because Japanese students seldom use calculators and any computer tools but use a set square and a pair of compasses and think how they can make triangles, rhombuses, and parallelograms. They also solve function problems by imagining and calculating in their heads. It is true this tool may motivate students, especially lower achievement students. However, I think it may stop students’ thinking process. I don’t know much about math education, but I believe teachers should use computer tools in the way their students can think actively.