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Printables

Triangle Pack

Curated and Reviewed by Lesson Planet
This Triangle Pack printable also includes:

With so many different types of triangles, it can be a challenge for young mathematicians to keep them all straight. Luckily this set of printable triangles is here to engage children in comparing and sorting triangles by their observable properties.

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CCSS: Adaptable
Concepts
acute triangles, equilateral triangles, isosceles triangles, obtuse triangles, right triangles, scalene triangles, triangles, triangle classification, triangle properties, comparing shapes
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Additional Tags
math
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Instructional Ideas
  • Have children sort these shapes as an anticipatory activity for a lesson series on triangle classification
  • Have partners use these triangles to create a visual displays that explain how to classify triangles
  • Laminate these triangles so they can be used each year when teaching about the different types of triangles
Pros
  • A total of 10 different triangles are included in the set
  • Includes examples of right, acute, obtuse, equilateral, isosceles, and scalene triangles
  • Triangles are large, making them easy for students to manipulate 
Cons
  • None
Common Core
4.G.A.2 5.G.B.3 5.G.B.4 MP6 MP7