Bennett, Albert B. Mathematics for elementary teachers : a conceptual approach / Albert B. Bennett, L. Ted Nelson. - 6th ed. - Boston : McGraw-Hill, c2004. - xii, 875p. : col. ill. ; 26 cm. Includes bibliographical references and index. ISBN: 0072532947 Subjects--Topical Terms: Mathematics LC Class. No.: QA39.3 / B43 2004