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Unit Plan
Texas Education Agency

Texas Gateway: Solving Systems of Equations Using Matrices

For Students 9th - 10th Standards
Given a system of up to three linear equations, the student will solve the system using matrices with technology.
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: The Linear Combination Method/elimination Method

For Students 9th - 10th
Twenty problems present a variety of practice using the linear combination/elimination method to solve linear systems. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem...
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Lesson Plan
PBS

Pbs Mathline: Busing Problem Lesson Plan [Pdf]

For Teachers 9th - 10th
Explore system of linear equations by determining a busing route and minimize the cost for students to get to school.
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Activity
Paul Dawkins

Paul's Online Notes: Algebra: Systems of Equations

For Students 9th - 10th Standards
Learners examine how to solve systems of equations. Topics investigated are linear systems with two variables, linear systems with three variables, augmented matrices, and nonlinear systems. Class notes, definitions, and examples with...
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Activity
Purple Math

Purplemath: Systems of Non Linear Equations: Definitions

For Students 9th - 10th Standards
This Purplemath lesson provides formulas, equations, graphs and explanations of systems of equations.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Consistent and Inconsistent Linear Systems

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Identify a system as inconsistent, consistent, or dependent and determine how many solutions a system has.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Linear Systems

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] Students learn to solve a linear system by graphing. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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Lesson Plan
Other

Nearpod: Pairs of Linear Equations

For Teachers 8th Standards
In this instructional activity, 8th graders will learn how to solve systems of equations by graphing, substitution, and elimination.
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
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Unit Plan
Texas Education Agency

Texas Gateway: Formulating Systems of Inequalities

For Students 9th - 10th
Given a contextual situation, the student will formulate a system of two linear inequalities with two unknowns to model the situation.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 8.ee How Many Solutions?

For Teachers 8th Standards
Eighth graders are given a linear equation and instructed to find a second linear equation in order to make a system of equations that fits different criteria related to its possible solutions. Aligns with 8.EE.C.8.
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Unit Plan
Concord Consortium

Concord Consortium: Solving Systems of Equations

For Students 9th - 10th Standards
Two linear equations, with two variables, are presented and students use graphs to solve the system of equations.
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Activity
Texas Instruments

Texas Instruments: Solving Systems of Equations

For Teachers 9th - 10th Standards
In this activity, students explore Three different methods for solving linear systems on Voyage 200.
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Activity
Interactive Mathematics

Interactive Mathematics: Matrices and Linear Equations

For Students 9th - 10th Standards
Examples are provided to demonstrate how to use matrices to solve 2x2 and 3x3 matrices. Examples include real world applications and some are interactive.
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Unit Plan
Khan Academy

Khan Academy: Systems of Equations With Substitution

For Students 7th - 8th Standards
Solve systems of equations where one of the equations is solved for one of the variables. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Systems Using Substitution

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system of linear equations using substitution.
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Unit Plan
Oswego City School District

Regents Exam Prep Center: Linear Quadratic Systems

For Students 9th - 10th Standards
Resources to use when planning instruction on linear-quadratic systems. Find lessons on solving systems algebraically and graphically, a practice quiz with solutions, and a worksheet through which students investigate and solve systems.
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Activity
Interactive Mathematics

Interactive Mathematics: Graphical Solutions of a System

For Students 9th - 10th Standards
An example of how to find the solution of a linear system is presented using the graphing method. This is a nice tutorial for students to use as a reference while practicing with linear systems.
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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...
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Activity
Texas Instruments

Texas Instruments: Solving Equations

For Teachers 9th - 10th
Learn to use the TI-86 to solve many types of equations by following this lesson plan and activity. Included are keystroke instructions and calculator screenprints to guide students.
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Whiteboard
ClassFlow

Class Flow: Linear Equations Substitution

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In this Flipchart, students are introduced to linear equations, substitutions, and graphing linear equations on a coordinate grid system.
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Systems of Inequalities

For Students 9th - 10th Standards
Hotmath provides 21 practice problems dealing with systems of equations and inequalities. Each of the practice problems include a step-by-step guide for solving their algebraic problem.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Determining the Type of Linear System

For Students 8th Standards
[Free Registration/Login may be required to access all resource tools.] Recognize linear systems of equations with solutions and without solutions.
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Unknown Type
Khan Academy

Khan Academy: Check Solutions to Systems of Equations

For Students 6th - 8th Standards
In this exercise, students check solutions to systems of equations. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

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