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Alabama Learning Exchange
Alex: Systems of Equations: What Method Do You Prefer?
The purpose of this instructional activity is to help students apply math concepts of solving systems of equations to real life situations. The students will use the three methods of graphing, substitution, and elimination to solve the...
Other
Algebra.com: Linear Equation and System Solvers: Solve Linear Systems
This interactive linear system solver allows you to enter two linear equations in general form and then plot the lines and find the answer using either substitution or elimination. The answer is presented with both methods accompanied by...
Other
All Elementary Mathematics: Trigonometric Equations
This site gives a definition for what a trigonometric equation is, gives a listing of the simplest trigonometric equations, and lists seven main methods of solution of trigonometric equations with examples.
Texas A&M University
Systems of Linear Equations an Introduction [Pdf]
Use this site to see how graphing and substitution are used to solve systems of equations. The examples have systems that have one, infinite, or no solutions. The site is set up to see the solutions step by step.
CK-12 Foundation
Ck 12: Algebra: Mixture Problems
[Free Registration/Login may be required to access all resource tools.] Solve problems that deal with a mixture of two things using the substitution method.
CK-12 Foundation
Ck 12: Algebra: Comparing Methods for Solving Linear Systems
[Free Registration/Login may be required to access all resource tools.] Decide which method is the best one to use to solve a system of linear equations.
Learning Wave Communications
Learning Wave: Algebra, Section 1
This resource covers the basic algebraic concepts of like terms, substitution, solving one- and two-step equations, and using formulas and problem solving. Sample problems and links to application problems are included.
Windstream
Ojk's Precalculus Study Page: Remainder and Factor Theorems
An introduction to two important uses of synthetic substitution, the remainder theorem and the factor theorem. Includes examples and sample problems with solutions.
Other
Ed Surge: A Guide for Bringing the Samr Model to I Pads
An explanation of the Substitution Augmentation Modification Redefinition Model (SAMR) Model. The author uses an analogy of making coffee at home as opposed to having one at Starbucks, and compares this to reading a book versus reading...
CK-12 Foundation
Ck 12: Algebra: Testing Solutions for Linear Inequalities
[Free Registration/Login may be required to access all resource tools.] Write and solve linear inequalities.
Alabama Learning Exchange
Alex: Battleships
This lesson is designed to review and reinforce three methods (graphing, substitution and elimination) of solving systems of linear equations. The students will work together and independently to find the solutions to systems of...
Texas Instruments
Texas Instruments: Linear Systems: Using Algebra
Students learn to solve a system of linear equations (2 equations with 2 variables) by substitution and elimination methods. They also review the definitions of consistent (independent and dependent) and inconsistent systems, and...
Alabama Learning Exchange
Alex: Types of Chemical Reactions and Predicting Products
The guided inquiry activity enables students to identify the five basic types of reactions - synthesis or composition, decomposition, combustion, single replacement and double replacement. Students will also begin to predict the products...
Colby College
Spanish Language & Culture: Direct and Indirect Pronouns (Part 2)
This online exercise is from the Colby College for practicing the substitution of pronouns for the direct and indirect objects of a sentence, and for using the two pronouns together in the same sentence. A brief English introduction...
CK-12 Foundation
Ck 12: Algebra: Mental Math for Multiplication/division Equations
[Free Registration/Login may be required to access all resource tools.] Use mental math to solve and check single-variable equations
Better Lesson
Better Lesson: What's My Solution?
Finding the solution through use of substitution helps student realize there is only one answer when solving equations.
Frontiers Media
Frontiers: Seeing With Your Ears: A Wondrous Journey Across the Senses
For dozens of years it has been believed that the brain is organized into "sensory areas": that is, that there is a "visual area," an "auditory area," and so forth, and that the visual area can only process visual information. It has...