Unit Plan
Texas Education Agency

Texas Gateway: Solving Quadratic Equations Using Concrete Models

For Students 9th - 10th
Given a quadratic equation, the student will use tiles to factor and solve the equation.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Quadratic Equations

For Students 9th - 10th
Includes lesson, practice exercise, and teacher resource on how to factor quadratic equations. You'll find examples for using the factoring and graphing methods for solving, a twelve-question quiz with hints and answers, and a suggested...
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Khan Academy

Khan Academy: Solve Quadratic Equations: Complex Solutions

For Students 9th - 10th Standards
Solve quadratic equations using the quadratic formula. Some of the equations have real solutions while others have complex solutions.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Quadratic Equations

For Students 9th - 10th Standards
A detailed tutorial that will guide you through various methods for solving quadratic equations: factoring, square root, completing the square, and quadratic formula. Follow step-by-step examples, view video problem-solving...
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Algebra: Quadratic Equations

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains the quadratic equations, including how to solve them by factoring, completing the square, and using the quadratic formula. There are example problems solved, problems for the student to...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Equations That Are Quadratic in Form

For Students 9th - 10th
Using this tutorial, you'll learn to solve quadratic equations by viewing step-by-step equations and video explanations and by completing practice problems.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Identification of Quadratic Models

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers fitting a data set to a quadratic equation.
Unit Plan
Khan Academy

Khan Academy: Quadratics by Taking Square Roots

For Students 9th - 10th Standards
Solve quadratic equations of the form (x+a)squared-b=0. These can be solved using square roots. For example, solve (x-5)squared-4=0. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Unit Plan
Math Is Fun

Math Is Fun: Solving Word Questions

For Students 6th - 8th
A tutorial that explains how to solve word problems. It points out key words that signal operations or what is being measured, and wording that is confusing and needs to be simplified. Presents lots of examples, both simple and complex,...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: The Quadratic Formula: Deriving and Using the Quadratic Formula

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers deriving the quadratic formula and using it to solve any quadratic equation.
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Khan Academy

Khan Academy: Quadratic Formula

For Students 9th - 10th
Solve quadratic equations using the quadratic formula.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Completing the Square

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn how to complete the square in order to solve quadratic equations.
Unit Plan
Cool Math

Coolmath: The Quadratic Formula

For Students 9th - 10th Standards
Reference material and practice problems using the quadratic formula.
Unknown Type
Khan Academy

Khan Academy: Quadratics by Taking Square Roots: Strategy

For Students 9th - 10th
Analyze the process of solving a quadratic equation by taking the square root.
Unit Plan
Khan Academy

Khan Academy: Quadratic Word Problems (Standard Form)

For Students 9th - 10th
Solve real-world word problems that involve quadratic models. In this exercise, that models are given in standard form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
Article
Mocomi & Anibrain Digital Technologies

Mocomi: What Is an Equation?

For Students 2nd - 8th Standards
Explains the different types of equations and provides examples to solve.
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Wyzant

Wyzant: Solving Using the Quadratic Formula Worksheet

For Students 9th - 10th Standards
The practice sheet reviews how to solve equations using the quadratic formula. The resource consists of 20 questions with answers available.
Unknown Type
Khan Academy

Khan Academy: Completing the Square

For Students 9th - 10th Standards
Solve quadratic equations of the form ax^2+bx+c by completing the square.
Unknown Type
Khan Academy

Khan Academy: Completing the Square (Intermediate)

For Students 9th - 10th
Solve quadratic equations of the form x^2+bx+c by completing the square.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei the Circle and the Line

For Teachers 9th - 10th Standards
Students are required to solve a system of equations in this task which will demonstrate their understanding of the correspondence between intersection points of the two graphs and solutions of the system. Aligns with A-REI.C.7.