Lesson Plan: Magnitude of a 2D Vector | Nagwa Lesson Plan: Magnitude of a 2D Vector | Nagwa

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Lesson Plan: Magnitude of a 2D Vector Mathematics • First Year of Secondary School

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This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to determine the magnitude of two-dimensional vectors.

Objectives

Students will be able to

  • interpret the magnitude of a vector as its length as represented in a 2D coordinate system,
  • find the magnitude of a 2D vector that is given in component form or in terms of unit vectors,
  • find the magnitude of a 2D vector that is given graphically,
  • find the possible values for an an unknown component in a 2D vector when given its magnitude,
  • understand that vectors of magnitude one are called unit vectors,
  • understand that vectors of magnitude zero are called zero vectors.

Prerequisites

Students should already be familiar with

  • the Pythagorean theorem,
  • unit vectors,
  • vectors in component form and in terms of unit vectors,
  • representing 2D vectors graphically.

Exclusions

Students will not cover

  • adding and subtracting vectors,
  • scalar multiplication of vectors,
  • 3D vectors,
  • the dot product or cross product.

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