Quadratic Inequalities

Develop a sketchy approach to solving quadratic inequalities! Using a sketch of a graph, the presenter shows a way to solve quadratic inequalities. Pupils then practice that method to solve their own quadratic inequalities and apply the skill to solve word problems.

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CCSS: Adaptable
Instructional Ideas

  • Review writing compound inequalities
Classroom Considerations

  • The class should be able to solve quadratics by factoring
  • Individuals need to understand the graph of a quadratic
Pros

  • Shows the work required to get to the solution
  • Includes two worksheets with answers
Cons

  • None