.ALGEBRA FOR EVERYON E .Copyright © 1990 by THE NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS, INC. 1906 Association Drive, Reston, VA 20191-9988 All rights reserved Sixth printing 2000 Library of Congress Cataloging-in-Publication Data: Algebra for everyone / edited by Edgar L. Edwards, Jr. p. cm. Includes bibliographical references. ISBN 0-87353-297-X 1. Algebra—Study and teaching. I. Edwards, Edgar L. II. Mathematics Education Trust. 1990 90-6272 512’.07l-—dc20 CIP The publications of the National Council of Teachers of Mathematics present a variety of viewpoints. The views expressed or implied in this publication, unless otherwise noted, should not be interpreted as official positions.