Reys, Robert E., Helping children learn mathematics / Robert E. Reys, Marilyn N. Suydam, Mary Montgomery Lindquist - 3rd edition - Boston : Allyn and Bacon, c1992 - viii, 312 pages : illustrations ; 28 cm Includes bibliographical references ISBN: 0205131425 LCCN: 91035925 Subjects--Topical Terms: Mathematics--Study and teaching (Elementary) LC Class. No.: QA135.5 / .R49 1992 Dewey Class. No.: