Quadratic Equation Teacher Resources

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Sal first solves a couple of equations using the factoring method he has already taught. Next, he introduces the quadratic formula and demonstrates how to plug the numbers from the quadratic equation into the quadratic formula. Step-by-step, he demonstrates how to solve quadratic formula to get the roots.
Introducing square roots into the quadratic equation mix, Sal takes care to address the ways viewers might go about solving the problems, both correctly and incorrectly. The video is an integral step in not only Sal's algebra series, but also in a developing math education.
Help algebra learners gain insight into the different forms of a quadratic equation. Using a motion sensor and a can on a table that has one end slightly elevated, learners gather data from rolling the can. They graph their data in relation to time and distance. Then looking at quadratic equations in three forms (vertex form, factored form, standard form), they compare them graphically and algebraically. 
Practice relating linear equations to quadratic equations and identify the properties of a quadratic equation. Draw a quadratic equation and assess how the coefficients a, b, and c affect the shape of a parabola. Create a model of each of the quadratic equations utilizing modeling clay.
Defining the word "discriminant" in the context of the quadratic formula, Sal continues to guide viewers through the process of quadratic equations. The true value of this video, as in Sal's entire series, is the emphasis on truly understanding the mathematical process necessary to solve the problem. Sal wants to foster a deeper learning within young mathematicians, rather than just handing them a formula and telling them to use it.
In this Algebra II worksheet, 11th graders use an online quadratic equation solver to find the zeros of a quadratic.  The one page interactive worksheet provides one worked example and the equation solver. 
Students explore a variety of ways of solving quadratic equations. Students choose from graphing, factoring, finding square roots, completing the square and using the Quadratic formula. They ponder in the end on polynomial equations.
"Quadratic Chutes and Ladders" helps the class review how to solve quadratic equations using four different methods. They solve each equation by completing the square, using the quadratic formula, graphing, or factoring depending on the number rolled on dice. A fun way to review some difficult concepts.
Students create quadratic equations and factor out to find the roots. In this algebra lesson, students watch a short video on how to factor trinomials. They are taught two methods and given the option to use either method.
Eleventh graders explore quadratic equations.  For this Algebra II lesson, 11th graders use Geometer’s Sketchpad to explore the properties of quadratics and the connections with polynomials and linear equations.  The lesson is designed as an introduction and quadratic equations are not introduced until the end.
Students differentiate and convert between rational roots and quadratic equations. In this algebra instructional activity, students solve quadratic and rational expressions finding the roots or intercepts of the graphs of a quadratic and linear equation. They relate the functions to the real world.
Explore methods of solving quadratic equations. Review linear functions through playing a "face off" game. Using a graphing calculator, graph quadratic functions and identify the parabola. Define the number of roots in a linear equation and how to algebraically find them. Factor, complete the square, and use the quadratic formula to solve equations.
Solve polynomial equations of degree using different theorems and apply the zero factor theorem for unknown numbers in a quadratic equation. Also use the discriminate to find out the kind of solutions to given quadratic equations shown.
In this solving quadratic equations worksheet, students select the best method to solve a quadratic equation and then solve five quadratics.  Fully worked examples  are provided.
Students solve quadratic equations. In this algebra lesson plan, students factor and graph linear and quadratic functions. They identify the standard and linear form of each equation.
Students graph quadratic equations. In this algebra lesson, students solve quadratic functions with factoring and the quadratic formula. They find other ways to solve quadratics and graph it.
Students solve quadratic equations. In this algebra activity, students factor quadratic equations to identify the different intercepts and graph their equations. They factor the equations and graph the parabola.
Students create HyperStudio Programs to present, review, and summarize various methods of solving quadratic equations.
Students solve quadratic equations using the quadratic formula. The teacher demonstrates solving quadratic equations and identifying the discriminant. Students model the teacher's instruction and solve sample equations on white boards. Students solve problems and compare answers.
Using a graphing calculator, construct a graph and find solutions to quadratic equations. Observe additional methods of solving quadratic equations. Independently, solve solutions by using the discriminant.

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