I used Geoboards all the time when I taught grade school–they are great for talking about shapes, lines, all sorts of figures, really. I have wanted to get one/make one for H. for a long time now. This post from an awesome blog called Filthwizardry, finally got my butt into action. I never dreamed of one this large, but darn its fun!!

We purchased a peg board from the hardware store (they cut it in half for us) and a packs of nuts and screws(make sure they fit thru your peg boards holes!) I randomly decided to go every fourth hole for good stretchiness. H. helped me attach the screws and nuts. Then you just need LOTS of rubber bands–colorful ones would be more fun. This is best done on a non-scratchable surface. An area rug is working for us.
I may make a few of these for birthday gifts!!