Help students see how math concepts work in different learning models with these double-sided dry-erase boards. Explore and teach number identification number sense addition subtraction and place value concepts in a visual and kinesthetic way. Each 8"L 71/8"W magnetic dry-erase board features a part-part-whole side and a ten frame on the reverse side. Includes 10 double-sided dry-erase boards and 100 QuietShape Foam magnetic two-color counters.