Unit Plan
CK-12 Foundation

Ck 12: Algebra: Forms of Linear Equations

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Write linear equations in standard form and find the slope and y-intercept of such lines.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Forms of Linear Equations

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn how to work with linear equations in standard form.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Families of Lines

For Students 8th - 9th
[Free Registration/Login may be required to access all resource tools.] Learn how to express families of linear equations.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Inequalities in Two Variables

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers graphing inequalities in two variables.
Activity
Texas Instruments

Texas Instruments: Staggered Races 1: Varying the ?B? In Y=mx+b

For Teachers 9th - 10th
The primary focus in this activity is on parallel lines and equivalent equations. In Activity 1 and Activity 2, the class collectively will create a system of parallel and coinciding lines. It is important to focus on parallel lines...
Lesson Plan
PBS

Pbs Mathline: Stressed to the Breaking Point Lesson Plan [Pdf]

For Teachers 9th - 10th
Students explore how much weight a spaghetti bridge can support and whether width and length matter. Printable lesson.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.c and a rei.a.1: Products and Reciprocals

For Teachers 9th - 10th
The purpose of this task is to test student skills at converting verbal statements into two algebraic equations and then solving those equations. Aligns with A-REI.A.1 and A-REI.C.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Systems of Linear Equations

For Students 9th - 10th
This website contains tutorials that cover the methods used to solve linear equations, substitution, elimination (adding & subtracting), and graphing. The practice pages allow students to practice the skills they have learned. On the...
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Khan Academy

Khan Academy: Solve Systems of Linear Equations With Elimination (Advanced)

For Students 6th - 8th Standards
In this exercise, students practice solving systems of linear equations with elimination (advanced). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Activity
Richland Community College

Richland Community College: Math 116 Lecture Notes

For Students 9th - 10th Standards
This site from the Richland Community College provides the detailed lecture notes to a college algebra course, complete with equations and definitions. Content ranges from "functions and their graphs" to "conics and parametric equations."
Lesson Plan
Cuemath

Cuemath: How to Solve Matrices

For Teachers 9th - 10th Standards
In this mini-lesson, we will explore the world of matrices by finding the answers to questions like how to solve systems of equations with matrices, how to solve matrices, and matrix operations with examples and formulas while...
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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.
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McGraw Hill

Glencoe Mathematics: Quiz on Solving Systems of Linear Equations

For Students 9th - 10th Standards
Learners show comprehension of advanced mathematical concepts in Algebra II. The questions check understanding on solving systems of linear equations. Topics include solving systems using graphing, substitution, and elimination methods.
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Khan Academy

Khan Academy: Systems of Linear Equations Word Problems

For Students 6th - 8th Standards
In this exercise, students practice solving systems of linear equations in word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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Other

Hsor.org: Frankfurter High: Hot Dog Sales

For Teachers 9th - 10th
Determine the number of hot dogs needed in order to make a profit with little waste. Adobe required.
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Other

Hsor.org: High Step Shoes: Product Mix

For Teachers 9th - 10th Standards
Determine the profits and the efficiency of the shoe company.
Handout
Oswego City School District

Regents Exam Prep Center: Solving Linear Systems Graphically

For Students 9th - 10th Standards
The method of graphing to solve a system of linear equations is demonstrated on this site. Students are shown how to graph the lines, then shown how to find the solution.
Unit Plan
Other

Math Portal: Row Reduction Method

For Students 10th - 12th
A step by step of how to solve systems of linear equations using the row reduction method.
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Ecuaciones Y Sistemas De Ecuaciones

For Students 9th - 10th Standards
In Spanish. Practice how to solve system of equations graphically with this interactive activity.
Activity
Purple Math

Purplemath: Systems of Linear Equations: Definitions

For Students 9th - 10th Standards
Covers the basic definitions involved in systems of linear equations.
Activity
Texas Instruments

Texas Instruments: Systems of Linear Equations

For Teachers 9th - 10th Standards
This set of questions pertains to systems of linear equations. Students are asked to determine the number of solutions and to find points of intersection. These are multiple choice problems with solutions included.
Lesson Plan
Other

Hsor.org: Pizza Pi: Work Force

For Teachers 9th - 10th Standards
High School Operations Research Math Modules - Applied Mathematics for decision making in industry and government
Unit Plan
Other

Hsor.org: Latisha Develops an Investment Plan: Decision Variables

For Teachers 9th - 10th Standards
Latisha is trying to decide on an investment plan that will make the most money, help her determine the best plan.
Activity
Cool Math

Coolmath: Cramer's Rule for 3x3's

For Students 6th - 9th
Use this tutorial to learn how Cramer's Rule works for 3 x 3.