Abacus

What is Abacus?, Definition, Uses & Examples - Video & Lesson Transcript

What is Abacus? How It Works and Educational Benefits

Mathematical Treasure: Modern Chinese Abacus

Abacus Earrings

Abacus Counting Tool

ABACUS - Global Kids Academy

Wooden Abacus Maths Games With 100 Beads For Kids

The Versatile, Venerable Abacus - CHM Revolution

How to Make an Abacus at Home: Homemade Abacus

How to Use an Abacus (with Pictures) - wikiHow

How to use the AL Abacus with ANY curriculum -- with videos