Teach the foundational concept of 10 like the most effective Asian math programs do — with ten frames! Reinforces counting, 1-to-1 correspondence, base 10, place value, number patterns, operations and more. Magnetic, write & wipe boards feature 10 frame on one side and double 10 frame on reverse. Includes 4 boards, 100 double-sided foam magnet counters and activity guide. Boards measure 7″L x 6 1/4″H. Intended for ages 5 years and up.