Purple Math
Purplemath: Solving Rational Inequalities
Demonstrates the factor-table method for solving rational inequalities.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Skill in Algebra: Algebraic Fractions
Explains how to find a common denominator between two rational expressions and how to reduce a fraction that involves factoring. There are example problems solved, problems for the student to attempt, and answers to the student problems....
Lawrence Hall of Science
The Math Page: Skill in Algebra: Removing Grouping Symbols
Here is a site that clearly and thoroughly explains removing grouping symbols like parentheses, braces, and brackets. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this...
Help Algebra
Help algebra.com: Translating Expressions
This resource discusses translating verbal expressions to variable expressions. It explains how to look for key words, then gives an example of the process in great detail.
CK-12 Foundation
Ck 12: 2.5 Simple Rational Models
This section draws on previous sections that explored how to add, subtract, multiply, and divide rational numbers in order to solve real-world problems involving rational equations. It explores how to apply these procedures in order to...
Cuemath
Cuemath: Quadratic Equations
A comprehensive guide for learning all about quadratic equations with definitions, quadratic formulas, how to solve them, solved examples, and practice questions.
CK-12 Foundation
Ck 12: 2.7 Simple Radical Models
This section explores both expressions and equations with radical signs that can be modeled using real-world situations, and provides opportunities to simplify and/or solve problems that require eliminating radicals.
Khan Academy
Khan Academy: Equations With Parentheses: Decimals & Fractions
Solve linear equations that contain expressions with parentheses and the coefficients are rational numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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,...
PBS
Pbs: Graphing a System of Equations
Solve a number riddle by finding the point of intersection for two lines. This video focuses on finding the solution for a system of equations, they are represented as an algebraic expression and a set of linear equations that are...
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...