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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