TY  - ADVS
TI  - How do you know?: make a model 
T2  - 3-2-1 classroom contact
AV  - TT154.G786.H693 1991 
PY  - 1991///
PB  - Distributed by Destination Education
KW  - Science
KW  - Study and teaching (Elementary)
KW  - Methodology
KW  - Juvenile films
KW  - Models and modelmaking
KW  - Children's films
KW  - Children's television programs
KW  - Educational videos
N1  - Originally televised on PBS; Elementary and middle school; 2
ER  -