Other
Mathpages.com: History of Mathematics
Find the information you need about math history, from Archimedes to Fermat. A great resource for studying the foundations of today's world of mathematics.
National Council of Teachers of Mathematics
The Math Forum: Famous Problems in the History of Mathematics
On this site, there are several math problems to explore and solve. Look through some solutions by famous mathematicians and expand your thinking about some interesting math concepts. Teachers of elementary grades may want to use this...