The Geometer's Sketchpad

With a scope that spans the mathematics curriculum from middle school to college, The Geometer's Sketchpad brings a powerful dimension to the study of mathematics.

Sketchpad is a dynamic construction and exploration tool that enables students to explore and understand mathematics in ways that are simply not possible with traditional tools or with other mathematics software programs.
What's new in this version:
Bug Fixes:
Functions defined by a Drawing no longer fail to fit the greatest height of the Drawing when the Drawing is highly rotated.
Custom Tools that both match certain Givens to existing sketch objects and create points-on-objects on their Givens no longer occasionally fail to match properly.
Several example documents in the "Elementary and Middle School Mathematics" folder have undergone minor improvements.
(Macintosh) Sketchpad is no longer incompatible with OS X P...