[brianh]

This game works well with Japanese children. They play a similar game where instead of slapping flashcards they just run along a set course, sometimes with obstacles. The course usually winds back and forth. When I played it for shapes and colors with some fourth graders, one kid called it "hebi janken", which basically means "snake rock scissors paper". I'm not sure if that's the general name for it, but if you're having trouble explaining the game to the kids or teachers it might be worth it to try throwing that name out there.
I hadn't thought to use this game for more complex topics. Thanks for the tip.