 An Introduction to Symmetry
 "This site is designed for students and teachers interested in exploring symmetry (grades 712). It contains lesson plans,
definitions, examples, activities, and links to other web sites. There are also some extension activities for those who would like a little challenge. "
 Pi Mathematics Home Page
 Activities where students can learn about pi: information on the history of pi, practical uses of pi (using Internet resources) and additional teacher resources.
 VRML Geometry Teacher
 Was designed to help students visualize solids. "You can spin them, walk around them, or just let them rotate."
 The Geometry Center
 Useful geometry resources for teachers at almost any level. Includes interactive math resources, Java applications, downloadable software, and more.

