Worthington, M. Children's mathematics : making marks, making meaning Worthington, Maulfry - London ; California ; New Delhi : Paul Chapman Publishing, c2003 - vii, 242 pages : illustration ; 24 cm. Includes index. ISBN: 0-7619-4070-7 Subjects--Topical Terms: Dewey Class. No.: Circ. 372.7044 W934c 2003