Lesson Plan: Moment of a Couple Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to calculate the moment of a couple of two forces and the resultant of two or more couples.


Students will be able to

  • understand that a couple consists of two forces of equal magnitude, acting in opposite directions,
  • calculate the moment of a couple about a point in space
    • with forces defined using vectors,
    • with forces defined using geometric shapes.


Students should already be familiar with

  • vectors,
  • moments.


Students will not cover

  • systems of forces equivalent to a couple,
  • 3D systems.

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