A short assessment has individuals determine the scale of a house plan. They use the scale to calculate the size of a door and window that need to be replaced, and then divide a bedroom in two, calculating the size of rooms created.

Concepts

scale, scale factors, scale drawings, equivalent ratios, ratios, proportional reasoning, proportions, measurement

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Additional Tags

math

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Instructional Ideas

• Provide instruction on how to compute with complex fractions
• Lead a discussion on precision in measurement

Classroom Considerations

• Individuals will need rulers marked in 32nds

Pros

• Answer key shows the complex fractions required to arrive at the solutions
• Diagram provides several ways to determine the scale factor

Cons

• None

Common Core

7.RP.A.1 7.RP.A.3 7.G.A.1 HSN-Q.A.1 HSN-Q.A.3 MP5 MP6