Enlargements with Negative Scale Factor

This Enlargements with Negative Scale Factor video also includes:

New Review

How will a scale factor affect a figure—negatively? Using a grid, the narrator of an engaging video performs a dilation with a negative scale factor. The presenter compares a positive scale factor with a negative scale factor to explain what happens to the position of the transformed object. The resource describes the transformation using a given figure and its enlargement, 

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CCSS: Adaptable
Instructional Ideas

  • Use the ray method to show why the figure is reversed with a negative scale factor
  • Make a connection between negative scale factors and rotations
Classroom Considerations

  • Individuals should understand how to perform basic dilations/enlargements
Pros

  • Provides several opportunities for practice
  • Includes templates to perform the dilations
Cons

  • None