TY  - BOOK
AU  - Kanis,Ira B.
AU  - Yasso,Warren E.
TI  - Earth science activities: a guide to effective elementary school science teaching 
SN  - 020516644X
PY  - 1996///
CY  - Boston
PB  - Allyn and Bacon
KW  - Earth science
KW  - Study and teaching (Elementary)
KW  - Earth sciences
KW  - Study and teaching
KW  - Activity programs
N1  - Includes bibliographical raferences and index
ER  -