Graphs Can Solve Equations Too

There are many equations Algebra I students are not ready to solve. Graphing to solve gives them a strategy to use when they are unsure of an algebraic approach to solve the problem. The lesson plan exposes learners to a wide variety of types of equations. 

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Begin by having class members graph by hand to reinforce the relationship between the input and output values; progress to using the graphing calculator
  • Emphasize the pros and cons of using graphing to solve and discuss challenges 
Classroom Considerations
  • Requires the use of graphing calculators capable of finding intersection points
  • The 17th installment of a 26-part series
Pros
  • Connections are made between the graph and the equation with clear explanations
  • Includes an opening and an exit ticket
  • All handouts, keys, and a detailed teacher guide are provided
Cons
  • None