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Types of Triangles

Types of Triangles. Grades 4 and 5, Mathematics. Lesson Objectives. We will learn how to identify, describe, and compare triangles: isosceles, right, equilateral, scalene, obtuse, and acute.

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Types of Triangles

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  1. Types of Triangles Grades 4 and 5, Mathematics

  2. Lesson Objectives • We will learn how to identify, describe, and compare triangles: isosceles, right, equilateral, scalene, obtuse, and acute. • We will discover a rule that states whether or not it is possible to construct triangles from given lengths.

  3. Watch and play • Access this link to learn about triangles and its classifications.

  4. Classifying Triangles • A triangle is a closed figure made from three line segments • Triangles can be classified based on their angles Right Obtuse Acute

  5. Classifying Triangles • Triangles can also be classified based on their sides Isosceles Equilateral Scalene

  6. Create your own triangles • Use the handouts given to you.

  7. Draw your own triangles • Use Math Is Fun to create different triangles.

  8. Class Discussion • Can any three lengths be the sides of a triangle?

  9. Let’s review • Answer the questions from http://www.ixl.com/math/grade-6/triangle-review

  10. End

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