Excellent video from Jimmy Chang, who has a master's degree in math and has been a math teacher at St. Pete College for more than eight years. Mr. Chang explains what geometry proofs are and their importance.

In this video clip learn how to create a proof to show that two
triangles are congruent because all their sides are the same. A math instructor shows examples with triangles and makes a statement and proof chart to show side, side, side congruency....[more]

This four minute video uses a smart board and a narrator to show students how to create a reasons column and the steps to follow in order to write a 2-column proof in Geometry. It is a good introduction to proofs and the underlying concepts, but no a...ctual examples are done.[more]

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