CK-12 Foundation
Ck 12: Algebra Ii: 1.1 Zero Product Property
This section explores the process for finding values for x that make polynomial equality true when written in terms of x and set equal to zero.
CK-12 Foundation
Ck 12: Geometry: Proofs Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide reviews proofs: algebraic proof, properties of congruence, and geometric proofs (two-column).
Other
Equivalence Relation of Equality
Each of the three equivalence relations of equality are given. The site exemplifies the equivalence relationship of equality as well as others. The site then turns to a more complicated explanation involving partitioning and generating...
CK-12 Foundation
Ck 12: Algebra: Single Variable Division Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable division equations
CK-12 Foundation
Ck 12: Algebra: Two Step Equations and Properties of Equality
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving equations with two steps.
University of Vienna (Austria)
University of Vienna: Substituting Terms in Terms
Interactive assessment that tests knowledge of substitution properties of equality. Some problems involve substituting values for variables, while some involve substituting expressions for variables.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: Linear Equations in One Variable
After completing this tutorial, you'll know what a linear equation is and how to solve one using various arithmetic properties. Contains several definitions, problems with step-by-step solutions, and practice exercises. Includes links to...
CK-12 Foundation
Ck 12: Algebra: Division to Solve Decimal Equations
[Free Registration/Login may be required to access all resource tools.] This site helps students to learn to identify and apply the inverse property of multiplication in decimal operations with expressions. Students master the concept by...
Department of Defense
Do Dea: Algebra 1: Semester 1: Equations
A learning module through which students learn about equations including the following: Translating words into equations and equations into words, The Properties of Equality to help solving equations, Techniques for solving simple...
ClassFlow
Class Flow: Trigonometric Functions
[Free Registration/Login Required] After a quick review of properties in Algebra- addition property of equality and multiplication property of equality- students are guided through all solutions using numerous strategies including back...
Math Words
Math Words: Symmetric Property of Equality
The symmetric property is defined and illustrated.
Other
Algebra.com: Solution: Given a System of Two Equations in Two Variables
This activity shows an example of how to solve a system of equations using elimination. Each step is explained in detail. Additional links are provided for more information on properties of equality, solving equations, and solving a...
Library of Congress
Loc: America's Story: 14th Amendment to the Constitution
After the Civil War, the 14th amendment granted citizenship to all people born or naturalized in the United States. This included former slaves. Learn about the protections this amendment offers to citizens, including those who were once...
Texas Instruments
Texas Instruments: Linear Inequalities: Using Algebra
Students learn to solve inequalities using one and two steps. They review the properties of inequalities.
Texas Instruments
Texas Instruments: Roll the Dice
In this activity, students use the order of operations and number properties to create a unique expression from a set of numbers that must equal another number.
National High Magnetic Field Laboratory
Magnet Academy: Joseph Henry
Joseph Henry was an American scientist who pioneered the construction of strong, practical electromagnets and built one of the first electromagnetic motors. During his experiments with electromagnetism, Henry discovered the property of...
Better Lesson
Better Lesson: Introduction to Solving Equations
Sixth graders work with the concept of equality and balance to solve one and two-step algebraic equations.
Help Algebra
Help algebra.com: Multiplication Principle
Multiplying on both sides of an equation is demonstrated with several examples. The resource also includes dividing on both sides in order to solve an equation.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Some Rules of Algebra
Here is a site that clearly and thoroughly explains many rules of algebra, such as the commutative property and the addition property of equality. There are example problems solved, problems for the student to attempt, and answers to the...
Texas Instruments
Texas Instruments: Linear Equations: Using Algebra
Students learn to solve one-step and two-step linear equations. They understand algebraic concepts relating to linear equations such as isolating the variable, balancing equations, and checking solutions. Students also learn the...
Oswego City School District
Regents Exam Prep Center: Theorems and Postulates for Geometry
Here is a partial list of theorems, postulates, and properties.
Khan Academy
Khan Academy: Divide by 1
Divide by 1. Quotients are less than or equal to 10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive division hints. CCSS.Math.Content.3.OA.C.7 Fluently...
Digital History
Digital History: Feminism Reborn
This comprehensive survey of the women's movement during the 1960s and 1970s documents women and politics, women's wages, legal discrimination against women, stereotypes of women, women's rights legislation, and women's rights...