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Triangle Classification

Categories of triangles based on angle measurements or the number of congruent sides.

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Triangle Classification
Teacher Contributed

RWA Triangle Classification

Topic

Measuring and classifying triangles in the real world

Vocabulary

  • Acute triangle
  • Obtuse triangle
  • Right triangle
  • Equilateral triangle
  • Isosceles triangle
  • Scalene triangle

Student Exploration

How many triangles can you identify and classify in the world around you?

To learn more got to

http://www.ysjournal.com/viewimage.asp?img=YoungScientistsJ_2009_2_7_35_57766_u12.jpg

Extension Investigation

1. Students will identify triangles in their classroom or school and do a presentation on what they found. See an example here:

2. Each student will bring or take a photo of an acute, right, obtuse, equilateral,isosceles and scalene triangles. They will measure the triangle angles and sides using a protractor and a ruler.

Layering (optional)

Triangles Rap

Real World Triangles

Triangle Sort, Shapes http://www.crickweb.co.uk/ks2numeracy-shape-and-weight.html

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