Lesson Plan: The Pythagorean Theorem Mathematics • 8th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to to use the Pythagorean theorem to find the length of the hypotenuse or a leg of a right triangle and its area.

Objectives

Students will be able to

  • recall and prove the Pythagorean theorem,
  • use the Pythagorean theorem to find the length of the hypotenuse of a right triangle,
  • use the Pythagorean theorem to find the length of a leg of a right triangle,
  • solve geometric problems using the Pythagorean theorem.

Prerequisites

Students should already be familiar with

  • finding the area of a triangle,
  • finding the area of a square,
  • identifying the hypotenuse and legs of a right triangle.

Exclusions

Students will not cover

  • the converse Pythagorean theorem.

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