Setup: Chairs in a circle. Tape a 12x problem under each chair (e.g., "12x9"). How to play: Play music. Students walk. When music stops, they sit. They immediately read the problem under their chair. If they answer correctly (108), they stay. If they answer incorrectly, they stand up and "challenge" another student. Last student standing wins.
The adrenaline spike helps encode the memory. After three rounds of 12x Knockout, students no longer hesitate on "12x6." classroom 12x games