Scale Factor

This Scale Factor interactive also includes:

Does doubling mean everything doubles? Learners adjust the scale factor between two rectangles. Using the calculated measurements, pupils investigate the ratios between the lengths, perimeters, and areas of the rectangles.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Have class members calculate the ratios of the perimeters and areas
Classroom Considerations
  • Be aware the ratio of figures is not the same for the side lengths and the perimeter and area
  • The measurements are to the nearest hundredth so there are some rounding errors
  • Contains a link to a lesson that uses the resource
  • Calculates lengths and areas in a universal measurement that does not depend on screen size
  • None
Common Core