CK-12 Foundation
Ck 12: Algebra: Systems of Linear Equations in Three Variables
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system of equations in three variables (x, y, and z).
Help Algebra
Help algebra.com: Rationalizing the Denominator
Learn to simplify radical expressions by removing radicals from denominators. The demonstration includes both single radicals and binomials that require the use of a conjugate.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Fraction Operations, Rates, Ratios
Twenty-five problems presented on the topics: evaluating expression with fractional values, fraction operations, rates, and ratios. They are given with each step to the solution cleverly revealed one at a time. You can work each step of...
Oswego City School District
Regents Exam Prep Center: Addition and Subtraction of Radicals
Learn about like terms and the rules of adding and subtracting radicals. The examples are easy to follow and supply all the steps you need to know.
Purple Math
Purplemath: Partial Fraction Decomposition: General Techniques
Partial-fraction decomposition is the process of starting with the simplified answer and taking it back apart, of "decomposing" the final expression into its initial polynomial fractions. This reference material demonstrates the...
ClassFlow
Class Flow: Order of Operations
[Free Registration/Login Required] This flipchart is a lesson on order of operations.
Other
Chili Math: Combining Like or Similar Terms
Explains how to simplify algebraic expressions by combining like terms. Provides numerous examples.
Oswego City School District
Regents Exam Prep Center: Scientific Notation
Dealing with very small or very large numbers can be tedious. Scientific notation helps simplify the process and this tutorial teaches students scientific notation with multiple examples, practice problems, calculator tips, and two...
Wyzant
Wyzant: Exponents of Polynomials Worksheet
Twenty practice problems are presented where polynomials (mostly binomials) in parenthesis are raised to number exponents. Each of the questions has a step-by-step solution for the student to see after completing the work on their own....
Oswego City School District
Regents Exam Prep Center: Multiplication and Division of Radicals
Learn the steps necessary for multiplying and dividing radicals. The examples are easy to follow.
ClassFlow
Class Flow: Order of Operations
[Free Registration/Login Required] By the end of the lesson, students will apply the order of operations to help simplify complex expressions and demonstrate knowledge by completing a pair share.
ClassFlow
Class Flow: Order of Operations
[Free Registration/Login Required] By the end of the lesson, students will apply the order of operations (PEMDAS) to help simplify complex expressions. Students will work together as a whole class and then demonstrate their knowledge...
Oswego City School District
Regents Exam Prep Center: Adding and Subtracting Polynomials
A detailed explanation of polynomials and like terms is followed with many examples of how to add and subtract them. Lessons for the teacher as well as interactive examples for the students provide plenty of opportunities for practice....
Wyzant
Wyzant: Distribution Worksheet
Ten distribution problems are provided in this worksheet from WyzAnt. An answer sheet is also available for checking the students solutions. The distributive skills required are limited to having one term (either a constant or a sign) in...
Khan Academy
Khan Academy: Combining Like Terms
Simplify algebraic expressions by combining like terms. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: 2.4 Solving Rational Equations
This section builds from previous sections on simplifying, multiplying, dividing, adding, and subtracting rational expressions, and it investigates how to apply those skills to solving rational equations. It also covers several...
Wyzant
Wyzant: Negative Exponents of Fractions
WyzAnt reviews how to simplify fractional expressions that contain negative exponents and then lets you practice using the online worksheet.
ClassFlow
Class Flow: Order of Operations
[Free Registration/Login Required] This flipchart provides an introduction to the order of operations.
Oswego City School District
Regents Exam Prep Center: Millionaire Radicals
In a format like TV's "Who Wants to Be a Millionaire," students answer math questions about radicals to earn points and help their group win the game. Teachers need to create their own question bank, which allows this game to be used for...
Alabama Learning Exchange
Alex: Battle to the Death: Adding Integers
The goal of this lesson is for students to use manipulatives to add integers, creating concepts rather than memorizing rules. This lesson will be related to the 300 Spartans who battled the invading Persians at the Battle of Thermopylae,...
Purple Math
Purplemath: Complex Fractions
A brief lesson, including good examples, on complex fractions is provided by PurpleMath.