TY  - BOOK
AU  - Gattegno,Caleb
TI  - The common sense of teaching mathematics
SN  - 0-87825-024-7
U1  - 372.7 GAT 
PY  - 1973///
CY  - New York
PB  - Educational Solutions
KW  - Mathematics
KW  - Study and teaching (Elementary)
N1  - Includes  bibliographical references and index
ER  -