Geometer Sketchpad

Description: Initially developed specifically for geometry exploration and modeling, students can also use Sketchpad to explore algebra, trigonometry, calculus, art, and science. Students draw an object in Sketchpad, then are able to explore that object's mathematical properties by dragging it with the mouse. Geometric relationships are preserved, allowing students to examine an entire set of similar cases in a matter of seconds. In this way, Sketchpad encourages a process of discovery in which students visualize and analyze a problem, then make conjectures and attempt a proof.

Sketchpad can be used in a variety of classroom settings and with a variety of technologies. It can be used with an overhead projector, with one or two computers, or in a computer lab. Students can also use it for independent exploration and homework assignments. In addition, they can pose questions and present findings directly, or collaborate to solve problems. Finally, Sketchpad's multimedia capabilities encourage curiosity and enhance creative student presentations of work.

Developer:
Key Curriculum Press

Publisher:
Key Curriculum Press

Grade Levels: 5+

Cost: $359.95 (10-User Lab Pack)

Effectiveness: Reviewed by University of California, Berkeley for NCREL and Metiri Group (2000).

Sketchpad has been in existence for about 10 years and is very popular. The developer says, "Teachers in a recent national survey called it the most valuable mathematics software for students." Robert Devaney, a mathematician known for his interest in using technology for teaching fractal geometry, has said that, "Geometer's Sketchpad is one of the most effective pieces of software I have ever encountered."

"Teachers called it the most valuable mathematics software for students."

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