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.

Concepts

similarity, similar triangles, math modeling, corresponding sides, proportional reasoning, proportions, height, distance, indirect measurement

Show More Show Less

Additional Tags

math

Show More Show Less

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

Pros

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

Cons

• None

Common Core

8.G.A.4 MP1 MP4