Students solve 12 equations of circles and race around the room in this self-checking scavenger hunt — includes both a full-color and a black-and-white print version! How it works: Each card shows a check answer at the top in a large banner. Students solve the problem on their card, then search the room for the card whose banner matches their answer. That card becomes their next stop. The 12 cards form a closed loop — every student visits every card exactly once before returning to their startin