Lesson Plan
Alabama Learning Exchange

Alex: Systems of Equations: What Method Do You Prefer?

For Teachers 9th - 10th Standards
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...
Activity
Other

Algebra.com: Linear Equation and System Solvers: Solve Linear Systems

For Students 9th - 10th Standards
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...
Activity
Other

All Elementary Mathematics: Trigonometric Equations

For Students 9th - 10th
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.
Activity
Texas A&M University

Systems of Linear Equations an Introduction [Pdf]

For Students 9th - 10th Standards
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.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Mixture Problems

For Students 9th - 10th
[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.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Comparing Methods for Solving Linear Systems

For Students 9th - 10th Standards
[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.
Handout
Learning Wave Communications

Learning Wave: Algebra, Section 1

For Students 9th - 10th
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.
Activity
Windstream

Ojk's Precalculus Study Page: Remainder and Factor Theorems

For Students 9th - 10th Standards
An introduction to two important uses of synthetic substitution, the remainder theorem and the factor theorem. Includes examples and sample problems with solutions.
Article
Other

Ed Surge: A Guide for Bringing the Samr Model to I Pads

For Teachers 9th - 10th
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...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Testing Solutions for Linear Inequalities

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Write and solve linear inequalities.
Lesson Plan
Alabama Learning Exchange

Alex: Battleships

For Teachers 9th - 10th
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...
Activity
Texas Instruments

Texas Instruments: Linear Systems: Using Algebra

For Teachers 9th - 10th Standards
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...
Lesson Plan
Alabama Learning Exchange

Alex: Types of Chemical Reactions and Predicting Products

For Teachers 9th - 10th
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...
Unit Plan
Colby College

Spanish Language & Culture: Direct and Indirect Pronouns (Part 2)

For Students 9th - 10th
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...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Mental Math for Multiplication/division Equations

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Use mental math to solve and check single-variable equations
Lesson Plan
Better Lesson

Better Lesson: What's My Solution?

For Teachers 6th
Finding the solution through use of substitution helps student realize there is only one answer when solving equations.
Article
Frontiers Media

Frontiers: Seeing With Your Ears: A Wondrous Journey Across the Senses

For Students 3rd - 8th
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...