Proportional Scaling

This Proportional Scaling video also includes:

It is not as simple as scaling. MIT researchers explain that a micro engine cannot just be a proportional scaling of a working larger engine. The Math at the Core: Ratios resource compares the proportions involved with the surface area and volume when a figure is scaled.

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CCSS: Designed
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Instructional Ideas
  • Research how an engine generates electricity
  • Create a composite three-dimensional figure and have the class determine the surface area and volume of a scaled version of the figure
Classroom Considerations
  • Individuals should understand the calculation of surface area and volume of a cube
  • Provides teaching tips
  • Includes a diagram to illustrate the comparison of the scale of surface area and the scale of volume
  • None