ABC Actors hones teamwork skills. Divide all the participating kids into groups of three to five and select a leader for each team. Yell out a letter to all groups and they should work together to form the letter either by standing up or lying on the floor. The team captains are responsible for helping assemble the letter and won't take part in forming it. The team that finishes the letter first, and with the most clarity, wins the round. Set up as many rounds as you want based on how interested the kids are in the game. For a cooperative version of the game, have all teams form a different letter and spell out a word. Encourage them to go as fast as possible to beat their last time.
Balloon play is a safe indoor sporting event that works off excess energy. Devise a series of "decathlon events" that kids can participate in using balloons. Inflate enough balloons of various sizes, shapes and colors and fill up a room -- enough for all participants to have at least one balloon. Some events the Family Education Network recommends including in your "decathlon" are tossing long balloons in a distance competition, keeping round balloons in the air as long as possible just using the feet, balancing a balloon of choice across a room on just the head and a "slow motion" hoops shooting competition with a laundry basket or shopping bag.
Arrange all participants in a circle and choose one child to start the game. This child may choose any body movement he wants, such as wiggling like a worm or puffing out his cheeks, and the person after him in the circle must both repeat what he did and add an extra movement of his choice. The person after that must repeat the first two movements and add her own desired movement, and so on. Any child who doesn't repeat the movements properly or says he can't remember them is "out." The last child in the circle wins the game. You may have to go around the circle multiple times for one child to be victorious. Diversify the game by having the kids say a word or make an animal noise instead.
Select one child to come up with a list of five to 10 small objects in the room and write them down on a piece of paper where participants can't see them. She announces how many objects she's trying to find and the rest of the players must find that number of items within one to two minutes. Each player earns a point for every item she finds that matches an item on the list. Players put the objects away before the next round and another child gets a chance to create the list. You can also increase the kids' odds of finding the correct objects by creating a theme in advance, such as objects that begin with the letter "M" or objects that are round.