Fundamental Property of Reflections

What do midpoints and perpendicular bisectors have to do with reflections? Learners first reflect line segments over the x- and y-axes. Using the results, they see how the line of reflection is a perpendicular bisector for segments connecting original and reflected points.

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CCSS: Designed
Instructional Ideas

  • Challenge the class to perform reflections using different methods
Classroom Considerations

  • Pupils must be familiar with the slope and midpoint formulas, as well as with reflections
  • Activity requires compasses and straightedges
Pros

  • Provides suggestions for accommodations and extensions
  • Includes a detailed lesson guide and worksheets
Cons

  • None
Common Core