Oer Commons: Mars: Proving the Pythagorean Theorem

Challenge scholars to prove the Pythagorean Theorem geometrically by using a cut-and-paste activity. They then must solve for the missing sides of right triangles.

Amaze your classes with the ability to find side lengths of triangles immediately — they'll all want to know your trick! Learners use the Pythagorean Theorem and special right triangle relationships to find missing side lengths.

There is more than one way to prove the Pythagorean Theorem. Euclid and Einstein found the same way to prove the Pythagorean Theorem. The video introduces several other ways to prove the theorem along with the history of its use.

Most adults remember learning about the Pythagorean theorem, but they don't all remember how to use it. The emphasis here is on developing an intuitive understanding of how and when to use the theorem. Young mathematicians explore...

The student will use triangle relationships to prove the Pythagorean Theorem and solve problems.

In this lesson, you will learn how to prove the Pythagorean Theorem by using similar triangles. [4:54]

Betty Fei details these three famous Pythagorean theorem proofs.

An engaging hands-on activity is presented. Learners of all ages are addressed in thie unique plan. K-5 learners identify, name, and define a rectangle, square, triangle, and the concept of area. Older learners prove the Pythagorean...

Your class knows the Pythagorean Theorem, but can they prove it? A series of three videos shows two proofs of the Pythagorean Theorem and use it to classify triangles. 

The Pythagorean Theorem, which states the relationship between the length of the sides of a right triangle and the length of the hypotenuse is shown. Several same-sized triangles are created to form a square and then manipulated to prove...