Grades K & up. Great tool for developing number concepts and computation skills! Desktop version features a frame that is thicker than the beads, allowing abacus to lie flat on student desks. Abacus activities offer students tactile counting practice and visual reinforcement of math facts. 10 rows of 10 beads in color-coded groups of five. 8 1/2"H x 9 1/2"W.
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