One side of this abacus allows students to perform basic operations and learn strategies for mastering math facts. The other side of this abacus emphasizes trading. The ten strands of beads are grouped in fives and tens to encourage quantity recognition and visual perception. Abacus measures 8.5” x 9.5” x 0.5
WARNING: CHOKING HAZARD–Small Parts. Not for children under 3 yrs.