TY  - BOOK
AU  - Van de Walle,John A
AU  - Karp,Karen S.
AU  - Bay-Williams,Jennifer M.
TI  - Elementary and middle school mathematics: teachingdevelopmentally 
SN  - 9781292021072
U1  - 510.712 
PY  - 2014///
CY  - Boston
PB  - Pearson / Allyn and Bacon
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Study and teaching (Middle school)
N1  - Includes bibliographical references and index
ER  -