Prime Numbers Game: players -> each player flips first card in their stack -> players look at all stacks-> first player to slap stack that contains prime # gets all cards in that stack. could use this for spotting factors of given number as well.

Christopher decides to have the chapters in his book going up in prime numbers "Chapters in books are usually given the cardinal numbers and so on. But I have decided to give my chapters prime numbers and so on because I like prime numbers"

Texas Teacher Round-Up: Fifth Grade Math Activities