1. 2-D or 3-D?: Sort the shapes as they go by into the correct bin.  See if you can beat 210 (Mr. Knaus' high score...so far!).
2. Robo Packer:  Pack the robots into suitcases - you may have to rotate or flip (reflect) the shapes to make them fit!  See how many you can do!
3. Pick a Shape:  Matching game with shapes.  See how fast you can do it!
4. Patch Tool:  Design a shape using other shapes.

And for a challenge:
How many cubes?:  Try to count how many cubes it takes to make the figure (don't forget the ones you can't see!)