An Exercise in Changing Scales

Classmates create a scale drawing from another scale drawing, changing the scale in the process. Groups enlarge or reduce the scale drawing and discuss their processes.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Spend some time confirming that the two methods of finding the new scale factor do arrive at the same answer
  • Lead a discussion on precision and which approach would be best for different projects
Classroom Considerations
  • It is beneficial if the class has done the lesson An Exercise in Creating a Scale Drawing
  • The lesson is the 21st portion of a 22-part series
Pros
  • Includes a sample scale drawing to use if a pupil did not complete one
  • The lesson summary provides an example to illustrate the main concept
Cons
  • None
Common Core