Lesson Plan: Two-by-Two Determinants Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to identify determinants and evaluate 2 × 2 determinants.


Students will be able to

  • know the formula for finding 2×2 determinants,
  • evaluate 2×2 determinants,
  • use 2×2 determinants to solve problems.


Students should already be familiar with

  • matrices.


Students will not cover

  • determinants of 3×3 matrices.

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