TY  - BOOK
AU  - Tweed,Anne
TI  - Designing effective science instruction: what works in science classrooms 
SN  - 9781935155065
AV  - Q181 .T87 2009
PY  - 2009///
CY  - Arlington, Va.
PB  - NSTA Press, NSTA Press, National Science Teachers Association/McREL
KW  - Science
KW  - Study and teaching
KW  - Curriculum planning
N1  - Includes bibliographical references and index
ER  -