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This Computing Actual Lengths from a Scale Drawing lesson plan also includes:
- Computing Actual Lengths from a Scale Drawing - Teacher Version (.doc)
- Computing Actual Lengths from a Scale Drawing - Student Version (.pdf)
- Computing Actual Lengths from a Scale Drawing - Student Version (.doc)
- Grade 7 Mathematics Module 4: Full Module Teacher Materials (.pdf)
- Grade 7 Mathematics Module 4: Full Module Student Materials (.pdf)
- Grade 7 Mathematics Module 4: Full Module Copy Ready Materials (.pdf)
- Answer Key
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The original drawing is eight units — how big is the scale drawing? Classmates determine the scale percent between a scale drawing and an object to calculate the length of a portion of the object. They use the percent equation to find both unknowns in the problems in the 15th installment in a 20-part series.
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CCSS:
Designed
Concepts
Additional Tags
Instructional Ideas
- Lead a discussion on which dimensions on a grid are the easiest to find
- Use a scale drawing of the school to determine the dimensions of the classrooms
Classroom Considerations
- The class should be familiar with finding scale factors
Pros
- The answer key shows what measurements were used to find the scale factor
- Includes anticipated class responses to questions asked during the discussion
Cons
- None