TY  - GEN
AU  - Ryan, Julie
AU  - Williams, Julian
TI  - Children's mathematics 4-15 : learning from errors and misconceptions
AV  - QA135.5 Rya
PY  - 2007///
PB  - Open University Press
KW  - Mathematics - Study and teaching (Early childhood)
KW  - Mathematics - Study and teaching (Elementary)
KW  - Mathematics - Study and teaching (Secondary)
N1  - 20652
ER  -