Modeling Using Similarity

How do you find the lengths of items that cannot be directly measured? The 13th installment in a series of 16 has pupils use the similarity content learned in an earlier resource to solve real-world problems. Class members determine whether enough information is present to show triangles are similar and use properties of similarity to find unknown measurements.

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CCSS: Designed
Instructional Ideas

  • Provide opportunities for individuals to recognize the similar triangles in the problems
Classroom Considerations

  • The class should be familiar with finding missing parts of proportions
  • Requires understanding of the relationships between corresponding sides in similar figures

  • The resource provides diagrams to be used with the problems
  • Answer key shows the correct proportion needed to arrive at the solutions

  • None
Common Core

Included Materials - Join to Access

  • Modeling Using Similarity (Doc)
  • Modeling Using Similarity (PDF)
  • Modeling Using Similarity (Doc)
  • Grade 8 Module 3: Teacher Materials
  • Grade 8 Module 3: Student Materials
  • Grade 8 Module 3: Copy Ready Materials
  • Math Fluency Support for Grades 6-8
  • Answer Key