TY  - BOOK
AU  - Worthington,Maulfry
AU  - Carruthers,Elizabeth
TI  - Children's mathematics: making marks, making meaning 
SN  - 0761940707 (pbk.)
PY  - 2003///
CY  - London
PB  - Paul Chapman Pub.
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Great Britain
N1  - Includes bibliographical references (p. 228-236) and indexes
UR  - http://www.loc.gov/catdir/toc/fy043/2002107133.html
ER  -