TY  - BOOK
AU  - Merseth,Katherine Klippert
TI  - Windows on teaching math: cases of middle and secondary classrooms 
SN  - 0807742783 (paper : acidfree paper)
AV  - QA13 .W57 2003
U1  - 373.19 WIN 22nd ed.
PY  - 2003///
CY  - New York
PB  - Teachers College Press
KW  - Mathematics
KW  - Study and teaching (Middle school)
KW  - United States
KW  - Case studies
KW  - Study and teaching (Secondary)
N1  - Includes bibliographical references (p. xxii-xxiv) and index
ER  -