The recommended ages for the Cranmer and the Large Abacus is 6 years and older. The operation of any abacus requires study and practice. This video program and accompanying booklet are designed to familiarize you with basic uses of the Cranmer Abacus. The concepts and skills covered include how numbers are represented and how to perform the four basic math functions on the abacus. All of the information is contained on two videotapes that are clearly indexed for easy location.
Trademarks are of their respective companies.
APH offers a variety of information in accessible media concerning our products and services. Please contact us for further information.