Have students line up across the play area with a partner. Demonstrate how to stand and balance on tennis balls with the “balls of their feet” rather than their heels. Allow students to practice with their partners before starting. Some groups may require spotters. Pass out four tennis balls to each player (eight balls per pair). The challenge is to cross a small area with your partner while holding hands and standing only on tennis balls. The area is filled with “toxic goop” and the only thing that will protect you from it are tennis balls. If one of the partners steps on the ground they must start over.
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