If anyone can think of mathy games, though, that would be appropriate for K kids but also stretch for kids like DS, and not TOO easy to destroy/lose pieces from, I am open. I am quite willing to spend some money on all of this, though obviously I don't want to go completely crazy and turn DS's classroom into the Fancy Classroom with all the Stuff while the other K classrooms have nothing. The school is drastically underresourced.