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Sophia Learning
Sophia: Introduction to Geometric Proof
Explore the structure and how to complete a flow proof and a two-column proof.
Sophia Learning
Sophia: Pythagorean Theorem Proof
Find the area of several figures to prove the Pythagorean theorem. Complete quiz to check understanding. [5:16]
Khan Academy
Khan Academy: Triangles: Wrong Statements in Proofs Example 1
A video analyzing how to recognize wrong statements in a proof. [2:48]
Khan Academy
Khan Academy: 3. Completing the Proof
In this video we'll uncover the connection between the previous diagram and the rotation formulas. Repeat viewing suggested!
Sophia Learning
Sophia: Proving or Disproving a Solution: Lesson 2
In this lesson, students see how to find out whether or not a solution is correct or incorrect. It is 2 of 7 in the series titled "Proving or Disproving a Solution." [4:01]