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Activity
Texas Instruments

Texas Instruments: Quadratic Equations With the Cbl 2

For Teachers 9th - 10th
Students will generate parabolas using the motion sensor. They will then determine the vertex form of the equation and compare it to the regression equation from the calculator.
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Activity
Texas Instruments

Texas Instruments: Quadratic Equations

For Teachers 9th - 10th
Students solve quadratic equations by factoring and finding square roots, as well as by graphing.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A ced.a.2: Silver Rectangle

For Teachers 9th - 10th
This task provides a geometric context for working with ratios and algebraic equations. Students will create and then solve an algebraic equation describing a remarkable shape, the silver rectangle. Aligns with A-CED.A.2.
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Handout
Math Is Fun

Math Is Fun: Algebra: Graphing Quadratic Equations

For Students 9th - 10th
Explains how to graph quadratic equations and how to find the quadratic equation when given just the graph. Includes ten practice questions.