A tangram is an ancient Chinese puzzle where you make pictures using mathematical shapes.
Make a set of tangram pieces from squared paper as shown below:



You can try some more tangram puzzles in the World of Tan problems.
There are puzzles using a different set of tangram shapes in the problem Square Tangram.

Or why not try designing some Tangram pictures of your own?

If you want to learn how to make a tangram by folding paper without having to do any measuring or ruling lines, click here.