TY  - BOOK
AU  - Copeland,Richrad W.
TI  - How children learn mathematics: teaching implications of Piaget's research. 
SN  - 0023247800
PY  - 1979///
CY  - New York
PB  - Macmillan
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - sears
N1  - Includes bibliographical references and index
ER  -