The Abacus
Free Presentations in PowerPoint format
Abacus – To Understand the Numeration
The Chinese Abacus – Mental Math for Creative and Analytical Thinking
The Chinese Abacus and Number Sense
Putting the Pieces Together – Chinese Inventions
The Use and History of the Abacus
Using a Chip Abacus to Show Addition
See Also: Counting, Addition, Subtraction, Multiplication, Division, Math Index
For more links, lessons and loads of other goodies for teachers and kids, continue on to see what Mr. Donn has for Abacus and China.
For Kids
A Brief Introduction to the Abacus