TY  - BOOK
AU  - Blackburn, Barbara R. 
TI  - Rigor and Differentiation in the Classroom: Tools... by Barbara R Blackburn	 Rigor and Differentiation in the Classroom: : Tools and Strategies. 
SN  - 9780815394471
U1  - 371.394 
PY  - 2019///
CY  - New York
PB  - Routledge, 
KW  - Individualized instruction
KW  - Teachers-time management
ER  -