TY  - BOOK
AU  - Silbert,Jerry
AU  - Carnine,Douglas
AU  - Stein,Marcy
TI  - Direct instruction mathematics
PY  - 1981///
CY  - Columbus, Ohio
PB  - C.E. Merrill Pub. Co.
KW  - Mathematics
KW  - Study and teaching (Elementary)
N1  - Includes index; Bibliography: p. 485-490
ER  -