Materials: Your body
To play, first teach the kids a bunch of body parts. Eyes, ears, mouth, nose, head, shoulders, knees, and toes is probably enough, but a few more is okay. Then divide the class into two teams, and line them up facing each other. In turn, one player from each team comes forward. The teacher names a body part, and the student who touches that body part first earns one point for their team. Can be played up to a certain number of points, or a number of rounds through everyone, or until time runs out. Keep score on the board and declare a winning team at the end.