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This Proportional Scaling instructional video also includes:
- Proportional Scaling Illustration
- Student Reference
- Teacher Reference
- Activity
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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
Concepts
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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
Pros
- Provides teaching tips
- Includes a diagram to illustrate the comparison of the scale of surface area and the scale of volume
Cons
- None