Class Bingo! Class periods compete against each other. Each class can earn multiple stamps a day. If no one is tardy they get a stamp, if everyone is participating, good classroom discussion, everyone is on task, etc. I have 100 Popsicle sticks in a cup. Each one has a number on it. I draw a Popsicle stick and place a sticker on the # I drew of the class' bingo card. First class period to get 10 stamps in a row (BINGO) wins a prize. When a class wins I print out new BINGO cards.