The Geometer's Sketchpad (GSP5) ... With a 20-year record of classroom success, The Geometer's Sketchpad® is the world's leading software for teaching mathematics. Instructors have named it the "Best Educational Software of all Time." Sketchpad gives students a tangible, visual way to learn mathematics that increases their engagement, understanding, and achievement. And it's not just for geometry. Use it for elementary and middle school math, algebra, precalculus, and calculus.