Today's mathematics: concepts and methods in elementary school mathematics/

Main Author: Heddens, James W., 1925-
Format: Book
Language:English
Published: Chicago: Science Research Associates, c1980
Edition:4th ed.
Subjects:
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245 1 0 |a Today's mathematics:   |b concepts and methods in elementary school mathematics/  |c James W. Heddens 
250 |a 4th ed. 
260 |a Chicago:  |b Science Research Associates,  |c c1980 
300 |a 590 p. :  |b ill. ;  |c 28 cm. 
504 |a Includes bibliographical references and index. 
650 0 |a Mathematics  |x Study and teaching (Elementary) 
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