TY  - GEN
AU  - Lloyd, Gwendolyn.
AU  - Herbel-Eisenmann, Beth
AU  - Star, Jon R. 
TI  - Developing essential understanding of expressions, equations, and functions for teaching mathematics in grades 6-8
SN  - 9780873536707 (pbk.)
U1  - 513.0712 
PY  - 2019///
CY  - Reston, VA
PB  - National Council of Teachers of Mathematics
KW  - Mathematics
KW  - Study and teaching
KW  - Mathematics -- Study and teaching (Middle school)
KW  - Effective teaching
N1  - Expressions, equations, and functions : the big ideas and essential understandings --
Connections : looking back and ahead in learning --
Challenges : learning, teaching, and assessing
ER  -