Mathematics Sites

The Math Forum:

Lots of materials organized by topic and level; discussion groups.  Popular with teachers and students alike. http://www.mathforum.com

CoolMath:

Colorful and fun. http://www.coolmath.com/

S.O.S. Math:

2500+ math pages, all levels. http://www.sosmath.com/

The Prime Pages:

Accessible, plus contains some high level stuff, on a mathematics topic of enduring interest and relevance http://www.utm.edu/research/primes/

Encyclopedia of Polyhedra:

George Hart’s growing collection of virtual polyhedra. Best viewed with a VRML plug-in (see VRML below): http://www.georgehart.com/virtual-polyhedra/vp.html

Computer Languages

Python: 

Increasingly considered a good first language yet remains popular with pros; active, helpful community http://www.python.org (free, Windows, Mac, Linux)

PLT Scheme:

lots of instructional materials from Rice University, TX http://www.plt-scheme.org/ (free, Windows, Mac, Linux)

Other Computer Resources

POV-Ray:

High quality ray tracing software for developing exciting math-based art.  http://www.povray.org (free)

VRML Pages:         

Another technology for studying geometry and doing graphic art. http://www.web3d.org/

Oregon TIPS:

A resource for teachers which parents and students might use. http://www.oregon-tips.com/ (click browse button)