Lesson Plan: Equating, Adding, and Subtracting Complex Numbers Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to equate, add, and subtract complex numbers.


Students will be able to

  • understand that when equating, adding, or subtracting complex numbers, the real and imaginary parts can be considered separately,
  • interpret and solve problems involving the equality of two complex numbers,
  • interpret and solve problems involving the addition and/or subtraction of two or more complex numbers.


Students should already be familiar with

  • the square root of 1(=𝑖),
  • the notation for the real and imaginary parts of a complex number.


Students will not cover

  • multiplication, division, and exponentiation of complex numbers,
  • representing complex numbers on an Argand diagram.

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