Reflection: Grappling with Complexity The Intercepts of a Quadratic Function - Section 2: Guided Notes + Investigation


This lesson is really the first step in getting students to the point where they can graph quadratics. It is worth reviewing unit 5 lesson 3 in which students identified and graphed x- and y-intercepts. Those resources will help solidify and remind students of the skills they have already built. This skill is important moving forward so firming up understanding is critical. An extension activity could be introducing different types of functions (exponential, logarithmic, rational, radical).  Although these are not taught in Algebra I students can use what they know about intercepts to explore those types of functions.

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  Grappling with Complexity: Gradual Release
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The Intercepts of a Quadratic Function

Unit 9: Quadratics
Lesson 2 of 5

Objective: SWBAT sketch a quadratic function using its intercepts.

Big Idea: Students will discover the relationship between the factors of a trinomial and its roots. Students will use the x and y axis to plot key points on a parabola.

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