Solving Systems by Inspection

This Solving Systems by Inspection handout & reference also includes:

Can you solve a system by just looking at it? The previous lessons in the series taught three methods of solving systems of equations. Now learners discover they can determine the number of solutions of a system just by looking at it. Examples show problems with one solution, no solution, and infinitely many solutions.

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CCSS: Designed
Instructional Ideas

  • Display examples with each type of solution (no solution, infinite solutions, or one solution) and ask learners to determine a method for determining the type of solution
  • Use a graphic organizer to note an example of each solution type
Classroom Considerations

  • Requires proficiency with the different methods of solving linear systems
Pros

  • Video explanations are clear and examples chosen are appropriate
  • The practice problems include both numeric and word problems
  • Provides an answer key
Cons

  • Examples provided do not include word problems or real-life examples