TY  - BOOK
AU  - Irwon, Stephanie
TI  - Breakthrough to math: teacher's guide for level one 
SN  - 0-88336-807-2
AV  - TR(GS 510.7 Irw9 1984
PY  - 1984///
CY  - Syracuse
PB  - New Reader's Press
KW  - Mathematics -- study and teaching
ER  -