Have the students start in partner formation. The front row can be even and the back row can be odd numbers. Have the students move in general space as "friends" (near each other). When the music stops, partners stand back to back. The teacher will call out odd or even. If your name is called, you are it. Only tag your partner. The teacher can call out math problems to solve. For example, 3 x 4 = 12 so even would be it.