Look how stinkin' cute my kids are playing this game. These moments make me smile :) They LOVE the I Have, Who Has games. This is them playing my Angles/2-D Shapes game. At the end of the day, after they write their agenda and pack, they meet friends on the carpet and play games.
Also, this is something I use DAILY in my class - whiteboards! This is a cheap and quick way to make them yourself. I'm not sure who I got this idea from or if I conjured it up myself, but nevertheless, it's a worthwhile project. Just buy a pack of plastic sleeves and insert card stock (paper makes it too flimsy when they display their answer). Voila! I use a ring clip to store them. EASY! You can even print lines or graph paper on the card stock if you find it useful.