TY  - BOOK
AU  - Van de Walle,John A.
AU  - Karp,Karen S.
AU  - Bay-Williams,Jennifer M.
AU  - Wray,Jonathan
TI  - Elementary and middle school mathematics: : teaching developmentally
SN  - 9780132879040
U1  - 510.71 
PY  - 2013///]
CY  - Boston
PB  - Pearson
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - lcgft
N1  - Includes bibliographical references and index
ER  -