A unit designed for middle to high school level math teachers who want to illustrate the principles of scaling, ratio, and proportion in a concrete way through model building, and for science teachers who want to teach...

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...

The Mathematical Association of America presents MathDL, an online collection providing a space for the MAA community to share research and learning materials. The site includes a math dictionary, recent news, MAA...

This mathematical resource, provided by the OEIS Foundation and authored by Neil J.A. Sloane, contains a searchable database of integer sequences along with information about classic integer sequences and puzzles. The...

This excellent metasite for prime numbers is mind-boggling, not only in terms of the quality of information provided, but also in the breadth and variety of the hyperlinks, from discourse on the Riemann hypothesis to...