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Lesson Plan

Solving quadratic functions by finding zeros using vertex form

teaches Common Core State Standards CCSS.Math.Content.HSA-APR.B.3 http://corestandards.org/Math/Content/HSA/APR/B/3
teaches Common Core State Standards CCSS.Math.Content.HSA-CED.A.1 http://corestandards.org/Math/Content/HSA/CED/A/1
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
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Big Ideas: The x-intercepts are the zeros of the function. The zeros hold meaning in real-world situations. Quadratics can have one or two real zeros. In this lesson, students will use vertex form to find the zeros of a quadratic function. This introduction to zeros as solutions to quadratic functions will lead to solving using factoring and graphing. Students will be able to recognize that the zeros are the x-intercepts of the graph and therefore have meaning in real-world situations. Students will understand that functions can have one or two real zeros for quadratics. Vocabulary: zeros of the function Special Materials: graphing calculator (optional)
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