TY  - BOOK
AU  - Stigler,James W
AU  - Hiebert,James
TI  - The teaching gap: best ideas from the world's teachers for improving education in the classroom 
SN  - 9781439143131
AV  - QA13 
PY  - 2009///
CY  - New York
PB  - Free Press
KW  - Mathematics
KW  - Study and teaching
KW  - United States
KW  - Germany
KW  - Comparative education
N1  - 1 (pages 195-215) and index; 2
ER  -