Added: 11/26/2008 A rich site for materials pertaining to math history. Students find much of interest here from math in other cultures to the history of pi, the history of zero, and more. Great resouce for math report assignments.
Added: 11/26/2008 The history of the abacus along with a virtual abacus that students may manipulate. Well-written. Most students know what an abacus is but have never used one; they find the virtual abacus to be quite interesting and can actually see place value in action.
Added: 11/26/2008 Colorful explanations of symmetry and tilings; provides a simple tutorial on the basic concepts involved in tilings, both periodic and non-periodic. Also offers an interactive java applet to create designs of various sorts.
Added: 11/26/2008 Large and varied collection of interactive math materials in algebra, geometry, recreational math and more. There is much material here worth investigating; some lends itself to student projects.
Added: 11/26/2008 This is an outstanding collection of materials related to the Fibonacci numbers including animations, puzzles, exercises and much more. My students are always delighted and amazed with the Fibonacci Numbers and Nature sections. The Fibonacci Puzzle page provides some interesting diversions.