TY  - BOOK
AU  - Petit,Marjorie M.
AU  - Laird,Robert E.
AU  - Marsden,Edwin L.
TI  - A focus on fractions: bringing research to the classroom 
T2  - Studies in mathematical thinking and learning
SN  - 9780415801508 (hbk. : alk. paper)
PY  - 2010///
CY  - New York
PB  - Routledge
KW  - Fractions
KW  - Study and teaching (Elementary)
KW  - Study and teaching (Middle school)
KW  - Ratio and proportion
KW  - Number concept in children
N1  - Includes bibliographical references (p. 183-184) and index
ER  -