Abacuses

Wooden Counting Frame

A wooden manipulative featuring 10 beads on each of the 10 steel rods. Overall size: 10-1/2" x 11". More.

Al Abacus

This 8-1/2" x 9-1/2" abacus is grouped in fives and tens to encourage quantity recognition and visual perception. On one side, students can perform basic operations (through division) and learn strategies for mastering the facts. On the ... More.

Place Value Computing Abacus

Designed to show place value in the decimal number system. Consists of 10 arched wires set in the base with a central partition, each bearing 10 sliding colored counters. Comma and decimal inserts show numbers to billions and decimals to ten-thousan... More.