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This Deriving the Quadratic Formula lesson plan also includes:
- Polynomial and Quadratic Expressions, Equations, and Functions - Module Overview (PDF)
- Polynomial and Quadratic Expressions, Equations, and Functions - Module Overview (Doc)
- Deriving the Quadratic Formula (Doc)
- Deriving the Quadratic Formula (PDF)
- Deriving the Quadratic Formula (Doc)
- Assessment
- Answer Key
- Join to access all included materials
Where did that formula come from? Lead pupils on a journey through completing the square to discover the creation of the quadratic formula. Individuals use the quadratic formula to solve quadratic equations and compare the method to other techniques learned.
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CCSS:
Designed
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Instructional Ideas
- Choose examples for class members to complete using various methods; use whiteboards for quick comparisons
- Challenge learners to use different methods by having volunteers race to solve the same problem with different methods
Classroom Considerations
- Allow time for sufficient practice; expand the lesson to multiple days if necessary
- Class members should be proficient with completing the square and factoring to be successful with this concept
- Fifteenth module in a 26-part series
Pros
- Designed to lead to the progression of the quadratic formula
- Emphasis is placed on determining efficient methods of solving based on the equation
- Handouts, keys, and a detailed teacher guide are included
Cons
- None