Bennet, Albert B. Mathematics for elementary teachers : a conceptual approach / Albert B. Bennet, L. Ted Nelson. - 7th ed. - New York : McGraw Hill Higher Education, 2007. - xxii, 804 p. : ill. Includes Bibliographical references and index. ISBN: 9780073022840 Subjects--Topical Terms: Mathematics. LC Class. No.: QA 39.3 BEN 2007