Fill this oversized floor mat with students to build numbers to ten! Or use the giant counters and watch as children master basic number concepts so important to later succeed in math! Ideal for a variety of activities to teach counting, cardinality, addition and subtraction. Tactile counters are made of durable thick foam, 8" in diameter, one side red, the other yellow. Tough vinyl mat is 28" x 64". Activity guide included. Grades K-1.