The core manipulative in the RightStart Mathematics program, this AL Abacus features beads grouped in 5s and 10s to encourage quantity recognition and visualization. On one side the child performs basic operations and learns strategies for mastering the facts. On the reverse side, trading is emphasized. This 9-3/4' x 7-1/2' (24.75 cm x 19.25 cm). Made in the USA.
