TY  - BOOK
AU  - Hart,K.M.
ED  - CSMS Mathematics Team.
TI  - Children's understanding of mathematics, 11-16
SN  - 071953772X
AV  - QA14.G7 
PY  - 1981///
CY  - London
PB  - John Murray
KW  - Mathematics
KW  - Study and teaching (Secondary)
KW  - Great Britain
KW  - Mathematical ability
KW  - Secondary schools
KW  - Curriculum subjects, Mathematics
KW  - Understanding by students
N1  - Bibliography, p225-226. - Includes index
ER  -