TY  - BOOK
AU  - Turner,Ethel M.
TI  - Teaching aids for elementary mathematics
U1  - 371.3078/T945t 
PY  - 1966///
CY  - London
PB  - Holt, Rinehart and Winston, inc.
KW  - Teaching
KW  - aids and devices
KW  - Mathematics
N1  - Bibliography and answer section at the end
ER  -