TY  - BOOK
AU  - Kopp,Jaine
TI  - Frog math: predict, ponder, play : teacher's guide 
AV  - QA135 
PY  - 1992///
CY  - Berkeley
PB  - Lawrence Hall of Science, University of California
KW  - Mathematics
KW  - Study and teaching (Primary)
N1  - "Grades Kindergarten-3"--T.p; 2
ER  -