TY  - BOOK
AU  - Humphrey,James H.
AU  - Humphrey,Joy N.
ED  - Thomas Publisher
TI  - Mathematics can be child's play
SN  - 0398056692
U1  - 372.7 23
PY  - 1990///.
CY  - Springfield, Ill.: 
PB  - Thomas, 
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Experiential learning
N1  - Includes bibliographical references and index
ER  -