TY  - BOOK
AU  - Miller,Marcia
AU  - Lee,Martin
TI  - Estimation investigations: more than 65 activities to build mathematical reasoning and number sense 
SN  - 0590496026
AV  - QA 141.15 .M647 1994
U1  - TR 372.07  
PY  - 1994///
CY  - New York
PB  - Scholastic Professional Books
KW  - Number concept
KW  - Reasoning (Psychology)
N1  - Faculty
ER  -