I guess I'm on a color in kick! The kids work in pairs or groups of 3. They choose a card that has a base ten block picture on it. They figure out the number and then look for the number on the critter sheet. They color in the number. If they choose a card and there isn't a space to color in then they loose their turn. When the whole sheet has been colored in they count to see how many each player colored to find the winner.