Education: December 2011 Archives

Internet Archive: Academic Film Archive of North America

By Michael Bates on December 17, 2011 3:45 PM | | TrackBacks (0)

Internet Archive: Academic Film Archive of North America

Mathematics, astronomy, sociology, history, biology, poetry, current affairs -- educational short films from the '50s, '60s, and '70s.

Incenter, Circumcenter, Centroid, Orthocenter: Journey to the Center of a Triangle.

By Michael Bates on December 17, 2011 3:39 PM | | TrackBacks (0)

GoGeometry: Incenter, Circumcenter, Centroid, Orthocenter: Journey to the Center of a Triangle.

A 1977 instructional film illustrating how the different centers of a triangle are constructed.

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