Cotter Abacus Standard for the Vision Impaired

Description

This abacus is similar to the Cotter Abacus; the 9¾” x 7½” (24.75 cm x 19.25 cm) frame is made of durable plastic. Plastic beads are grouped with five smooth yellow and 5 faceted blue for the vision impaired to encourage quantity recognition. On one side the child performs basic operations and learns strategies for mastering the facts. On the reverse side, trading is emphasized. An instructional booklet is included.

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WARNING: CHOKING HAZARD! Small parts. Not for children under 3 years.