Wenham, Martin. Understanding primary science : science knowledge for teaching / Martin Wenham and Peter Ovens. - 3rd ed. - Los Angeles : SAGE, c2010. - 24 cm. + 1 CD-ROM (4 3/4 in.) Includes bibliographical references and index. ISBN: 9781848601192 Subjects--Topical Terms: Science Study and teaching (Elementary). LC Class. No.: Q158.5 / .W46 2010