This abacus features a frame that is thicker than the beads, which allows abacus to lie flat on student desks. Abacus activities offer students tactile counting practice and visual reinforcement of math facts. Includes 10 rows of 10 beads in 2 colors grouped in fives for ease of use. Abacus measures 8 1/2" L x 9 1/2" W x 1/2" H.
This student abacus is the sort you need if you are using the RightStart Mathamatics courses.