Teach the foundational concept of 10 with ten-frames! Reinforce counting 1-to-1 correspondence base 10 place value number patterns operations and more. Students place magnetic counters on boards then raise boards to show their answers. Magnetic write & wipe boards feature 10 frame on one side double 10 frame on reverse. Games/Manipulatives Type: Math Manipulative; Age Recommendation: Ages 5 and Up; Number of Cards: 4.