SEE Math 
Topics 
Computer Animations using Maple  
Watch Out for that Last Step, by Alex I. 
Triangle Fun  
Proof of Pythagorean Theorem 

Graphs and Labyrinths  
The Bridges of Konigsburg 
Platonic Solids and Euler Numbers  
Stellated Icosahedron 
Counting, Probability and Infinity
Eleusis (a game modeling scientific research)
Math Games and Puzzles