Activity
Help Algebra

Help algebra.com: Solving Quadratics by Factoring

For Students 9th - 10th Standards
Tips for factoring quadratics are given and demonstrated in several examples. The examples include quadratics that have both two and three terms.
Activity
Help Algebra

Help algebra.com: Quadratic Equations

For Students 9th - 10th Standards
This article gives a definition of quadratic equations, then demonstrates how to solve them. Factoring, completing the square and the quadratic formula are the methods described. The examples are accompanied by lists of steps for solving...
Handout
Purple Math

Purplemath: Factoring Polynomials: How To

For Students 9th - 10th Standards
Demonstrates the steps involved in factoring a general polynomial, including using the Rational Roots Test and synthetic division. Shows how to "cheat" with a graphing calculator.
Handout
Windstream

Ojk's Precalculus Study Page: Solving Polynomial Equations

For Students 9th - 10th Standards
A comprehensive look at the three main ways to find the roots of a polynomial: factoring, formulas, and the rational root theorem.
Lesson Plan
Alabama Learning Exchange

Alex: "Factoring by Mack"

For Teachers 9th - 10th
This strategy for factoring trinomials will eliminate the trial-and-error method used in most textbooks.The lesson will be a direct teaching lesson. With the teacher lecturing and the young scholars taking notes and then having the...
Activity
Math Medics

S.o.s. Math: Algebra

For Students 9th - 10th Standards
This lesson provides basic instruction on the major concepts in algebra. Content includes a focus on fractions, units of conversion, complex numbers, quadratic equations, factorization and roots of polynomials, solving equations, systems...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Unknown Type
Washington State University

Washington State University: Sample Problems From Intermediate Algebra

For Students 9th - 10th
Check for college math readiness using this problem sampler. Problems cover high school algebra topics, including linear and quadratic equations, factoring, radicals, rational expressions, synthetic division, complex numbers and more....
Website
Cool Math

Coolmath: Solving Quadratics Recap

For Students 9th - 10th Standards
This CoolMath resource reviews the ways to solve quadratic equations: factoring, finding square roots, and using the quadratic formula.
Activity
Cool Math

Coolmath: Freaky Things That Can Happen With Quadratics

For Students 6th - 9th
Use this tutorial on to help solve quadratic equations.
Activity
Wyzant

Wyzant: Solve by Factoring Worksheet

For Students 9th - 10th
Learners complete a worksheet on solving equations by factoring. An example problem and answer sheet is included.
Activity
University of Saskatchewan (Canada)

University of Saskatchewan: Factoring Polynomials Given One Root

For Students 9th - 10th
Contains a few example problems on factoring polynomials with a given root.
Website
Discovery Education

Discovery Education: Web Math: Algebra

For Students 9th - 10th
This WebMath site provides links to tutorials and lessons in both Algebra I and II. Links to topics such as factoring, solving equations, polynomials, simplifying equations, graphing, and much more.
Activity
Other

Dans Math: Lessons: Intermediate Algebra

For Students 9th - 10th Standards
College professor Dan Bach presents a review of algebra concepts, including factoring, quadratic equations, and graphing parabolas. The examples are detailed, but easy to follow. This is a good site for reviewing before tests and quizzes.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Algebra Tiles

For Students 9th - 10th Standards
This resource is about factoring linear and quadratic expressions in one variable, evaluating them at a given value of the variable, multiplying factors to find the expanded form of the expression, and solving linear and quadratic...
Activity
Texas Instruments

Texas Instruments: Prodigious! Quadratics and Free Fall Motion

For Teachers 9th - 10th
Uses the movie "October Sky" as an introduction to the study of free fall motion functions. Acts a summation activity to a quadratic unit in Algebra. Solve quadratic equations by graphing, factoring, and the quadratic formula.
Activity
Discovery Education

Discovery Education: Web Math: Using the Quadratic Formula

For Students 9th - 10th Standards
This WebMath site provides interactive problem solvers to understand the quadratic formula and solve quadratic equations by factoring. In addition to providing answers, these 'solvers' show the step-by-step method in which to get there.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Zero Product Principle

For Students 8th - 9th
[Free Registration/Login may be required to access all resource tools.] Use the Zero Product Principle to solve polynomial equations.
Activity
Massachusetts Institute of Technology

Mit: Useful Trigonometric Identities

For Students 9th - 10th
This list of trigonometric identities includes the factoring formulas near the bottom. A great tool for reference.
Website
Other

Quick Math: Factor Polynomials

For Students 9th - 10th Standards
The process of factoring is essential to the simplification of many algebraic expressions and is a useful tool in solving higher degree equations. In fact, the process of factoring is so important that very little of algebra beyond this...
Interactive
Other

Interactive Algebra

For Students 9th - 10th
This interactive site allows you to practice several algebraic concepts, including solving equations, factoring, and graphing. Problems are randomly generated and allow unlimited practice. Each link contains buttons that allow you to get...
Activity
Math Notes and Math Tests

Pre Calculus Notes: Finding Zeros of Polynomial Functions [Pdf]

For Students 9th - 10th Standards
Students learn how to find the zeros of a polynomial function. Topics include rational zero test, factoring, and conjugate pairs of zeros. Techniques and examples are included
Website
Cool Math

Coolmath: Solving Quadratics the Square Root Trick

For Students 9th - 10th Standards
This CoolMath resource will help students solve quadratic equations with a square roots trick instead of through factoring.
Interactive
Lawrence Hall of Science

The Math Page: Topics in Pre Calculus: Quadratics

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains quadratic functions, including graphing functions and solving equations using factoring. There are example problems solved, problems for the student to attempt, and answers to the...

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