This is a 24 card game of I have who has. Students look at circles identified by their radius or by their diameter and then solve to find the area (rounded to the nearest whole number). Several things make my games unique. One is that I have an answer page that shows all 24 cards on it that one person holds so that if the game gets stuck that person can help move it along. The students will beg to be the person on "loop patrol". It is called loop because the game will loop around the classroom back to the person who starts the game.