08:03
Stellated IcosaDodecahedron
05:43
Multiplying and Dividing Negatives
09:50
Adding and Subtracting Negatives
05:05
Lego Logo Creations
07:34
Grassroots Metric (Salt Lake City)
09:28
Grassroots Metric Campaign (Final)
04:57
Basics of the Metric System
06:29
Grassroots Metric Campaign
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