Numbers in Color A New Method of Teaching Process of Arithmetic to All Levels of The Primary School
Caleb Gattegno
Educational Solutions Worldwide Inc.
First American edition published in 1955. Reprinted in 1957. Reprinted in 1958. Reprinted in 1961. Reprinted in 2009. Copyright Š 1955-2009 Educational Solutions Worldwide Inc. Authors: George Cuisenaire & Caleb Gattegno All rights reserved ISBN 000-0-00000-000-0 Educational Solutions Worldwide Inc. 2nd Floor 99 University Place, New York, N.Y. 10003-4555 www.EducationalSolutions.com
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