Best played with about 20 kids and 3 or 4 balls.
Draw a midline in your field and split into two teams, each with at least one ball. I like to tell the kids that the winning team will get a piece of candy each. Let them throw balls at the opposing team. When you are hit with a ball, you must cross to the other side of the midline. Usually there is great enthusiasm and energy put into getting people on to the team. It is fun to see how long it takes before the team either “wins”, or everyone realizes that, in the end, everyone is on the same team! Of course, everyone also ends up with a piece of candy!