Examine the relationship between ratios and scale. Young math scholars compare ratios of two models. They use the ratios to make a comparison between the two models. Each image uses a different scale, which requires learners to think deeply about the relationship.

Concepts

scale drawings, ratios, math modeling

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Additional Tags

math

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Instructional Ideas

• After completing the task, have individuals share their problem solving strategies
• Use as an opener for a lesson on scale factor

Classroom Considerations

• Your classes should be proficient with ratios and equivalent fractions prior to the activity

Pros

• Presents the problem using an open-ended format, allowing for multiple solution methods
• Includes both an answer key and a rubric for help in scoring

Cons

• None

Common Core

7.G.A.1