TY  - BOOK
AU  - Carruthers, Elizabeth
AU  - Worthington, Maulfry
TI  - Children's mathematics : making marks, making meaning
SN  - 9781412922821
SN  - 200692370
U1  - 377044 CAR 
PY  - 2006///
CY  - Thousand Oaks, CA
PB  - Sage
KW  - Mathematics - Study and teaching (Elementary) - Great Britain
N1  - Previous ed.: 2003. Includes bibliographical references (p. 243-252) and indexes
ER  -