Line Segments in 3-D: Finding the Midpoint!

It's about to get 3-D! The video shows your class how to expand the midpoint formula to find the midpoint of a three-dimensional segment. The example shown calculates the midpoint using the x-, y-, and z-coordinates.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Use as a challenge for upper-level pupils when studying midpoint
  • Have your classes graph the segments on a three-dimensional coordinate plane to verify the midpoint coordinates
Classroom Considerations
  • Best if used after learners have had experience with finding midpoints of two-dimentional segments
  • Instruction is clear and easy to follow
  • Instructor does not use visuals to demonstrate what is meant by a three-dimensional segment
Common Core