A java based maths number grid with lots of options. Hide numbers with Monty the snake and change between a hundred square and multiplication square.
http://ictmagic.wikispaces.com/Maths
What is a TANGRAM?
The Tangram is a Chinese very ancient game called Chi Chiao Bread, which means table of the wisdom. The puzzle is clear of seven pieces or "tans" that they go out of cutting a square in five triangles of different forms, a square and a trapeze. The game consists of using all the pieces to construct different forms. Though originally some hundreds of forms were catalogued only, today they exist more than 10.000.