Have students group up by what kind of pizza they want.  Have some groups of 5 (large pizza), some 4 and 3 (medium pizza), and some 6 (x-large pizza)

After the students get their pizza (which ideally would be square or rectangular, but round pizzas can be made square easily), have them draw a card that will tell them how they are to divide the pizza up. Try to keep them on task, but let them have fun!!