Materials: Whiteboard and marker
1. Draw a reward chart from 0–10 on the board. Give each number an effect such as +points, -points, swap scores, ×2, etc.
2. After a student answers correctly, teacher and student count down “3, 2, 1!” and each show any number from 0–5 with their fingers.
3. Add the two numbers. Example: teacher shows 3 and student shows 5 → 3 + 5 = 8. Apply the effect in box 8.
4. Let the class help design the reward chart if you want. Because the result is random, teams that are behind still have a chance to catch up.