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Lesson Plan
1
1
Curated OER

Two Squares are Equal

For Teachers 8th - 12th Standards
This problem is sure to get your young mathematicians thinking. The idea sounds simple: one equation, solve it as many ways as you can. This is meant to get at a deeper understanding of solving quadratic equations, including some more...
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Lesson Plan
2
2
Curated OER

Braking Distance

For Teachers 9th - 12th Standards
This real-life model of braking distance motivates learners to approach quadratic equations algebraically, numerically, graphically, and descriptively.
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Lesson Plan
Curated OER

Another Way of Factoring

For Teachers 8th - 10th Standards
Focusing on this algebra instructional activity, learners relate quadratic equations in factored form to their solutions and their graph from a number of different aspects. In some problems, one starts with the original equation and...
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Worksheet
Curated OER

Academic Algebra II - 1st Semester Exam

For Students 9th - 12th
In this solving quadratic equations worksheet, students solve 60 multiple choice and short answer problems. Students complete the square, factor, multiply, and solve quadratic equations.
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Interactive
Curated OER

Solve Five Quadratic Equations Using the Quadratic Formula

For Students 8th - 11th
In this solving quadratic equations worksheet, learners solve five quadratic equations by using the quadratic formula.  Students also review using the discriminant, solving by factoring, and solving by completing the square. ...
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Worksheet
Curated OER

Rewriting and Solving Quadratic Equations

For Students 8th - 11th
In this quadratic equations learning exercise, students rewrite five given equations into quadratic equations by changing the variables.  Students then find the real solutions for three quadratic equations.
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Worksheet
Curated OER

Operations on Polynomials

For Students 9th
In this Algebra I worksheet, 9th graders add, subtract, and multiply polynomials. Students factor polynomials and solve quadratic equations. The six page worksheet contains thirty problems. Answers are not provided. 
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Worksheet
Curated OER

Quadratic Review

For Students 10th - 11th
In this quadratic review worksheet, students work with an overview on how to solve and graph quadratic equations.  Twelve fully worked examples are shown.
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Worksheet
Curated OER

Using the Quadratic Formula #3

For Students 9th - 11th
In this algebra instructional activity, students solve 10 fill in the blank problems where they use the quadratic formula to solve quadratic equations.
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Interactive
Curated OER

Quadratic Equation Calculator

For Students 11th
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. 
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Interactive
Shodor Education Foundation

Shodor Interactivate: Algebra Quiz

For Students 9th - 10th Standards
Students are able to have an on line quiz where the score and time elapsed is recorded on various level of solving equation problems.
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Unit Plan
Khan Academy

Khan Academy: Algebra: Solving Quadratic Equations by Factoring

For Students 9th - 10th
An exercise on solving a quadratic equation by applying the method of factoring by grouping. Begin by clicking on "show scratchpad."
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Solving Quadratic Equations by Finding Square Roots

For Students 9th - 10th Standards
Twenty problems present a variety of problems working with various aspects of solving quadratic equations by finding the square roots. They are given with each step to the solution cleverly revealed one at a time. You can work each step...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Graphs of Quadratic Equations

For Students 9th - 10th
Twenty-one problems present a variety of problems working with various aspects of solving and graphing quadratic equations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: The Quadratic Formula

For Students 9th - 10th
Twenty-five problems present a variety of problems working with various aspects of solving equations using the quadratic formula. They are given with each step to the solution cleverly revealed one at a time. You can work each step of...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: The Discriminant

For Students 9th - 10th
Thirty-eight problems present a variety of practice working with discriminant. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to...
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Unit Plan
Other

Algebra Class: Solving and Graphing a Quadratic Equation

For Students 9th - 10th
Math teacher provides a unit on quadratic equations in which she explains the concepts of solving and graphing quadratic equations through numerous examples and graphs. Hyperlinks are available to each step that ultimately leads to...
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Handout
Other

Quick Math: Quadratic Equations

For Students 9th - 10th Standards
Complete step-by-step investigation of quadratic functions, allowing the user to input the function. Each step, from solving f(x) = 0 to graphing and finding extreme points, is covered in depth, via links for each step (requires...
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Unit Plan
Department of Defense

Do Dea: Algebra 1: Semester Ii: Quadratics and Radicals

For Students 9th - 10th Standards
A learning module through which students learn about quadrics and radicals including quadratic functions, solving quadratic equations, radicals, operations on radicals, and radical equations.
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Activity
Wolfram Research

Wolfram Math World: Quadratic Equation

For Students 9th - 10th Standards
This MathWorld site shows how to derive the quadratic formula.
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Interactive
Shodor Education Foundation

Shodor Interactivate: Algebra Four

For Students 9th - 10th Standards
A game for two players to for a connect four type of game where students solve equations (several difficulty levels of quadratic and/or linear equations)to drop a chip.
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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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Handout
Math Medics

S.o.s. Math: Quadratic Equations

For Students 9th - 10th Standards
This lesson shows a step-by-step procedure for solving a quadratic equation by completing the square.
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Unit Plan
Stefan Warner and Steven R. Costenoble

Finite Mathematics & Applied Calculus: Polynomial Equations

For Students 9th - 10th
The tutorial investigates how to solve polynomial equations. Students learn about the concept through class notes, examples, and practice problems. Topics include solving quadratic equations, factoring, and the quadratic formula.