Танграм
GeoGebra Pentominoes
Use the green slider to select your challenge. Then play with the pentominoes!
Chinese Match Puzzles 2 (7 puzzles)
Drag the matchstick to translate a match, and drag its red head to rotate it about the other end.
Try also [b]Chinese Match Puzzles 1[/b] (http://www.geogebratube.org/student/m990 ) if you haven't.