TY  - GEN
AU  - Stein, Mary Kay
TI  - Implementing standard-based mathematics instruction : a casebook for professional development
SN  - 9780807749579
AV  - QA 135.6
PY  - 2009///
PB  - National Council of Teachers of Mathematics/Teachers College Press
KW  - Mathematics - Study and teaching (Middle school) - Case studies
N1  - 25276
ER  -