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.
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.
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. Learners will create and then solve an algebraic equation describing a remarkable shape, the silver rectangle. Aligns with A-CED.A.2.
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.