TY  - BOOK
AU  - Merttens,Ruth
ED  - Arnold 
TI  - Teaching primary maths
T2  - Teaching matters
SN  - 0713184698
U1  - 372.7044 23
PY  - 1989///.
CY  - London: 
PB  - Arnold, 
KW  - Mathematics
KW  - Study and teaching (Elementary)
N1  - Includes bibliography: p. [180]-181
ER  -