TY  - BOOK
AU  - Jensen,Rosalie
TI  - Exploring mathematical concepts and skills in the elementary school
SN  - 0675090296
U1  - 372.7/J51e 
PY  - 1973///
CY  - Colombus, Ohio
PB  - Charles E. Merrill Publishing Co.
KW  - Education, Elementary-Mathematics
KW  - study and teaching
N1  - * Bibliography at the end of chapters. * Appendixes and index at the end
ER  -