The colored rods (Algebricks) and other teaching material described in this book are obtainable from: www.EducationalSolutions.com First American edition published in . Reprinted in . Copyright Š - Educational Solutions Worldwide Inc. Author: Caleb Gattegno All rights reserved ISBN - - - - Educational Solutions Worldwide Inc. nd Floor University Place, New York, N.Y. - www.EducationalSolutions.com
Now Johnny Can Do Arithmetic
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.