TY  - BOOK
AU  - Mason, John
TI  - Designing and using mathematical tasks
SN  - 	9781899618651
AV  - QA63 .M37 2006   
PY  - 2006///
CY  - St. Albans, U.K.
PB  - Tarquin
KW  - Mathematics
N1  - Includes bibliography and index; -
ER  -