Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 8 [Pdf]

For Students 9th - 10th Standards
Students label two different linear graphs and solve the system of equations. The exercise is available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 13 [Pdf]

For Students 9th - 10th Standards
The practice exercise has students solve a system of linear equations and identify the graphs of the equations. The graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 14 [Pdf]

For Students 9th - 10th Standards
The practice exercise has students solve a system of linear equations and identify the graphs of the equations. The graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 15 [Pdf]

For Students 9th - 10th
Learners identify the graphs of a system of linear equations and then solve the system. The practice exercise is available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 16 [Pdf]

For Students 9th - 10th Standards
Learners identify the graphs of a system of linear equations and then solve the system. The practice exercise is available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 19 [Pdf]

For Students 9th - 10th
The practice problem examines a system of linear equations. The math graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 20 [Pdf]

For Students 9th - 10th
The practice problem examines a system of linear equations. The math graphs are available in PDF format.
Activity
Math Medics

S.o.s. Math: Gaussian Elimination

For Students 9th - 10th Standards
In this lesson, the Gaussian Elimination method is used to solve systems of linear equations. Provides several formulas and examples for understanding.
Unknown Type
McGraw Hill

Glencoe Mathematics: Online Study Tools: Self Check Quiz on Linear Equations

For Students 9th - 10th Standards
Students show comprehension of advanced mathematical concepts in Algebra I. The questions check understanding on solving systems of linear equations. Techniques included are substitution, elimination, and graphing.
Handout
Wolfram Research

Wolfram Mathworld: Gauss Jordan Elimination

For Students 9th - 10th
Mathworld provides a three step explanation of Gauss-Jordan elimination. To help you better understand the process, you can click on any of the highlighted terms for definitions.
Activity
Other

Uww: Gauss Jordan Method

For Students 9th - 10th
An explanation is provided regarding Gauss-Jordan method, along with a thorough example showing every step from the original system of equations to the final solution.
Activity
Lawrence Hall of Science

The Math Page: Skill in Algebra: Simultaneous Linear Equations

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains how to solve systems of linear equations using the methods of combination, substitution, and Cramer's Rule. There are example problems solved, problems for the student to attempt, and...
Handout
Oswego City School District

Regents Exam Prep Center: Solving Systems Using Addition or Subtraction

For Students 9th - 10th Standards
Three examples are used to demonstrate solving a system of linear equations algebraically using addition and subtraction. The examples cover different situations that occur with the coefficients of the variable terms. Includes several...
Activity
Paul Dawkins

Paul's Online Notes: Augmented Matrices

For Students 9th - 10th Standards
Here are good examples of the Gauss-Jordan elimination method to solve systems of equations.
Lesson Plan
Alabama Learning Exchange

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

For Teachers 9th - 10th Standards
The purpose of this lesson 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 system of...
Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Secret Werewolf Riddle?

For Students 9th - 10th
You're on the trail of a werewolf that's been terrorizing your town. After months of detective work, you've narrowed your suspects to one of five people. You've invited them to dinner with a simple plan: to slip a square of a rare...
Lesson Plan
Alabama Learning Exchange

Alex: Systems on a Mission

For Teachers 9th - 10th
After solving one system of equations by the methods of graphing, elimination using addition or subtraction, elimination using multiplication, and substitution, students will be given four systems to be solved by one of each of the four...
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...
Graphic
Curated OER

Uww: Gauss Jordan Method

For Students 9th - 10th
An explanation is provided regarding Gauss-Jordan method, along with a thorough example showing every step from the original system of equations to the final solution.
Graphic
Curated OER

Uww: Gauss Jordan Method

For Students 9th - 10th
An explanation is provided regarding Gauss-Jordan method, along with a thorough example showing every step from the original system of equations to the final solution.
Graphic
Curated OER

Uww: Gauss Jordan Method

For Students 9th - 10th
An explanation is provided regarding Gauss-Jordan method, along with a thorough example showing every step from the original system of equations to the final solution.
Activity
University of Georgia

University of Georgia: Slope of Lines

For Teachers 9th - 10th Standards
This site provides a detailed unit on finding the slope of lines that investigates methods for solving systems of equations. Good lesson plan for class.
Activity
Math Medics

S.o.s. Math: Systems of Equations in 2 Variables

For Students 9th - 10th Standards
Discusses how to solve systems of equations in two variables by reviewing ans showing examples of the four methods of solving linear equations: substitution, elimination, matrices, and graphing.
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Now You See It, Now You Don't

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson is an introduction to a "different" type of coding, called steganography. In Steganography, images (or text) are split into layers, and then distorted in such a way so as to...

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