Original Web-based activities developed by Thirteen Ed Online Master Teachers. Each lesson consists of an overview with learning objectives, procedures for teachers, and "organizers" for students -- hand-outs,...

A unit that begins with a historical development of pi and proceeds with examples of activities to help students develop a deeper appreciation of the mathematical beauty and value of pi.

Created and maintained by John J. O'Connor and Edmund F. Robertson of the University of St. Andrews, this site contains a cornucopia of materials related to the history of mathematics and well-known mathematicians...

Mathworld, hosted and sponsored by Wolfram Research, Inc., is an online mathematics encyclopedia intended for students, educators, math enthusiasts, and researchers. This amazing resource was compiled over 12 years by...

The Women in Math Web site features an extensive, searchable bibliography of publications on topics such as gender and mathematics and feminist theories of science. The site is housed at the University of Oregon and...