Mathematics methods for the elementary and middle school : a comprehensive approach / Mary M. Hatfield ... [et al.]. Hatfield, Mary M., 1943- 9257 Mathematics Study and teaching (Elementary) 8934 Mathematics Study and teaching (Middle school) 9256 QA135.5 .B5343 2008 Includes bibliographical references (p. 453-466) and index. Hoboken, NJ : John Wiley & Sons, Inc., 2008. 2008. 2008 Text xix, 475 p. : eng