The history, uses,and creator of pi and also some fun facts, jokes and songs.

Covers the life of Euclid and a discussion of Euclidean geometry.

Games, illustrations, and definitions.

A program for computing lines, surfaces and volumes of the main plane and solid figures, through direct and indirect formulas. Includes multiple languages.

A lesson on the pythagorean theorem with the objective that the you will discover for yourself the actual theorem.

Interactive Director movie comparing a fugue by Johann Sebastian Bach to a Möbius strip.

Presents problems involving circles and triangles, with proofs, SAT practice quizzes and famous quotes. Also, has examples of geometry in Peruvian culture.

Use these simple illustrated formulas to calculate volume and surface area of various shapes.

Shows different types of straight-sided shapes with up to ten sides. Gives the total number of degrees for each side.

Use a virtual geoboard to help Dr. Marbles design a new fleet of cyberspace ships. From PBS Kids.