The Way Things Work
LeversDVD - 2003
A young Mammoth Islander observes some children playing on a see-saw and is inspired to try a simple machine called a lever to get her job done.
Publisher: Wynnewood, PA : Schlessinger Media, 
Copyright Date: ©2003
Characteristics: 1 videodisc (approximately 13 min.) : sound, color ; 4 3/4 in. + 1 teacher's guide.
Alternative Title: Levers