This is the perfect addition to any kindergarten classroom. Partners practice their uppercase and lowercase letters by battling each other for cards. If both partners get their letters correct, they keep their card. If one partner gets his or her letter correct, he or she can "win" his or her partner's card by providing the correct answer. If neither player gets their letters correct, that letter goes into their "Need to Learn" pile. Whoever has the most cards at the end is the winner.