TY  - BOOK
AU  - Lamon,Susan J.
TI  - Teaching fractions and ratios for understanding: essential content knowledge and instructional strategies for teachers 
SN  - 0805829407 (pbk. : alk. paper)
AV  - QA137 .L36 1999
U1  - 372.7/2 21
PY  - 1999///
CY  - Mahwah, N.J.
PB  - Erlbaum
KW  - Fractions
KW  - Study and teaching (Elementary)
KW  - Ratio and proportion
N1  - Includes bibliographical references (p. [255]-257) and index
UR  - http://www.loc.gov/catdir/enhancements/fy0745/98051379-d.html
ER  -