Divide the girls into 4 teams. They stand in an X formation like the arms on a windmill. Each girl needs to know what number in the team she is. In the middle put THREE items - can be balls, pencils, rocks - anything you have handy.
When a number is called, that person
The team who doesn't manage to claim an item sits out. Remove another item and play again until you're down to a winning team. This is a very fast paced game.