TY  - GEN
AU  - Skemp, Richard R.
AU  - Skemp, Valerie M.
TI  - Structured activities for primary mathematics : how to enjoy real mathematics
SN  - 0415028205
AV  - QA135.5.S56 1992 
PB  - Routledge
KW  - Mathematics - Study and teaching ( Primary )
KW  - QA
N1  - Includes index
ER  -