There are occasions in life when the competitive process is appropriate. But when people consider the relationships in their lives--with friends, family members, coworkers, and the larger community--they realize the value of cooperation. When adults give children the chance to cooperate, to work together toward a solution or a common goal like inventing a game or finding a way to fit inside a single plastic hoop, all the children giggle and laugh. They know they each contribute to the success of the venture. Each child realizes she or he plays a vital role in the outcome and accepts responsibility in fulfilling that role. Early childhood professionals are in a unique position to encourage cooperation among children. Teachers can foster cooperation in many different ways. One powerful way is to plan activities that promote children's physical fitness while at the same time inspiring cooperation instead of competition. In this article, the author discusses how to bring cooperation into the classroom and help children cooperate.