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Lesson: Types of Triangles: Angles and Sides Mathematics • 5th Grade

In this lesson, we will learn how to classify triangles as isosceles, scalene, or equilateral and as acute, right, or obtuse.

Lesson Plan

Students will be able to

  • classify triangles as isosceles, scalene, or equilateral and as acute, right, or obtuse,
  • classify triangles when all side lengths and angle measures are given,
  • classify triangles by measuring the sides and angles,
  • classify triangles using the notation for congruent sides.

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