TY  - BOOK
AU  - Mason,John
AU  - Graham,Alan
AU  - Johnston-Wilder,Sue
ED  - Open University.
ED  - ebrary, Inc.
TI  - Developing thinking in algebra
SN  - 9781412911719 (pbk.)
PY  - 2005///
CY  - London
PB  - The Open University
KW  - Algebra
KW  - Study and teaching (Elementary)
KW  - Great Britain
KW  - Study and teaching (Secondary)
N1  - Includes index; Includes bibliographical references
ER  -