TY  - DATA
AU  - Stueben, Michael.
AU  - Sandford, Diane.
TI  - Twenty years before the blackboard: the lessons and humor of a mathematics teacher 
T2  - Spectrum, 
SN  - 9781470457365 (online)
PY  - 1998///
CY  - [Washington, DC]
PB  - Mathematical Association of America
KW  - Mathematics
N1  - Includes index
UR  - https://doi.org/10.1090/spec/024
ER  -