I Have, Who Has is a chain-like game that wraps itself back around to the beginning. Each of the 29 cards included have an algebraic expression on the top and a written expression on the bottom. One student begins and reads their BOTTOM expression aloud. All other students must pay attention because they are looking to match their expression on the TOP of their card. If it is a match, they say "I have (top expression), who has (bottom expression)?" The chain should continue until all cards have been read and should end with your beginning student. All 29 cards must be used for the game so if you have less than 29 students, some students can have multiple cards.