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Interactive
Curated OER

Factoring Trinomials

For Students 9th - 12th
In this online math activity, students factor a series of trinomials given specific equations. This excellent resource allows the students to check their answers and to get "hints" should they run into difficulties.
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Worksheet
Curated OER

Factoring the Difference of Squares

For Students 8th - 10th
In this algebra activity, students factor special equations using difference of squares. They follow the formula to factor. There are 9 questions with an answer key.
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Lesson Plan
Curated OER

Difference of Squares

For Teachers 6th - 8th
Students analyze arithmetic statements. For this difference of squares lesson, students explore patterns and factor the difference of two squares. They compare quantities with integers. Students model and solve equations.
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Worksheet
Curated OER

Solving Quadratic Equations

For Students 9th
In this quadratic equations worksheet, 9th graders solve and complete 7 different problems that include factoring quadratics. First, they solve for the values of x that make the equation true. Then, students substitute their values into...
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Worksheet
Curated OER

Giant Difference of Squares

For Students 11th
In this algebra worksheet, 11th graders calculate the sum of squares of all real numbers that satisfy an equation. An answer key is provided.
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Worksheet
Curated OER

Factoring Special Cases

For Students 9th - 12th
In this factoring worksheet, high schoolers factor twenty-two factoring problems. Students factor perfect square trinomials and the difference of squares.
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Worksheet
Curated OER

The Three Special Binomial Products

For Students 9th - 12th
In this special binomial products worksheet learners FOIL 29 special binomials.  Students FOIL perfect square trinomials and difference of squares.
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Worksheet
Curated OER

GCF & Difference of Squares

For Students 7th - 9th
In this polynomial worksheet, students factor each of the polynomials on the page. There are 10 polynomials to factor, and students write the answer in the spaces provided.
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Worksheet
Curated OER

Difference of Squares

For Students 9th - 10th
For this binomial worksheet, students explore the difference of squares method to multiply binomials. This two-page worksheet contains ten problems.
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Worksheet
Curated OER

Adding/Subtracting Decimals

For Students 7th - 8th
In this decimal worksheet, students find the sum and difference of positive and negative decimal numbers. Equations contain two to three terms, with multiple operations. Thirty addition and subtraction problems are on this worksheet. ...
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Worksheet
Curated OER

Factoring a Difference Between Two Squares Worksheet

For Students 8th - 9th
In this algebra 1 instructional activity, students factor 20 problems involving the difference of two squares. They check their answers on-line.
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Lesson Plan
Curated OER

10-4 Practice: Factoring Differences of Squares

For Teachers 8th - 10th
In this practice worksheet, learners factor the differences of squares and identify prime expressions. Polynomials contain one or more variables, with exponents. Students complete 42 problems. An answer key is provided.
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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,...
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Activity
Math Medics

S.o.s. Math: Factoring: Some Special Cases

For Students 9th - 10th
In this lesson, special cases of factoring are described, including perfect squares, difference of squares, and difference and sum of cubes. Exercises with answers included.
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Activity
University of Saskatchewan (Canada)

University of Saskatchewan: Factoring Polynomials

For Students 9th - 10th
This site from the University of Saskatchewan provides an explanation of factoring by grouping, greatest common factor, perfect squares, and difference of squares. Higher degree polynomials factored as well. Some examples provided along...
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Activity
Other

Karl's Calculus Tutor: Basic Algebra Concepts

For Students 9th - 10th Standards
This site is a comprehensive review of algebraic basics including equations, the distributive law, the equation of a straight line, quadratic equations, polynomials, the difference of squares, the Pythagorean distance formula, and...
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Activity
Other

Dans Math: Lessons: Beginning Algebra

For Students 9th - 10th Standards
College professor Dan Bach offers a review of basic algebra concepts complete with definitions, explanations, and examples. Topics include simplifying expressions, solving linear equations, and graphing.
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Unit Plan
Wyzant

Wyzant: Factoring Completely

For Students 9th - 10th
The resource examines the algebra topic of solving equations. Students view the tutorial to review how to solve by factoring. The lesson consists of the greatest common factor, difference between two squares, and trinomial techniques. An...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Special Cases(squares, Product of Sum and Difference)

For Students 9th - 10th
Twenty-nine problems present a variety of problems working with polynomial special cases. 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"...
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Unit Plan
Khan Academy

Khan Academy: Difference of Squares Intro

For Students 9th - 10th
Factor quadratic expressions into the special products of the general form (x+a)(x-a). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Difference of Squares

For Students 9th - 10th Standards
Factor quadratic expressions of the general difference of squares form. The factored expressions have the general form (ax+b)(ax-b). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
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Activity
Help Algebra

Help algebra.com: Factoring Polynomials

For Students 9th - 10th
Several types of factoring are covered in this article, including common factors, grouping, special factors, and completing the square. The examples include detailed explanations of the factoring process.
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Activity
Help Algebra

Help algebra.com: Special Products

For Students 9th - 10th Standards
The difference of two squares and squaring binomials are the focus of this resource. Examples demonstrate how to multiply these special polynomials.
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Handout
Other

Karl's Calculus Tutor: The Difference of Squares

For Students 9th - 10th
This site provides a general overview of the special case of factoring known as the difference of squares. This procedure highlights rationalizing the denominator.