TY  - BOOK
AU  - Smith,Margaret Schwan
AU  - Silver,Edward A.
AU  - Stein,Mary Kay
TI  - Improving instruction in rational numbers and proportionality
T2  - Using cases to transform mathematics teaching and learning
SN  - 0807745294 (pbk.)
PY  - 2005///
CY  - New York
PB  - Teachers College Press
KW  - Mathematics
KW  - Study and teaching (Middle school)
KW  - United States
KW  - Case studies
N1  - Includes bibliographical references (p. 131-133) and index
ER  -