Unit Plan
PBS

Pbs: Graphing a System of Equations

For Students 6th - 8th
Solve a number riddle by finding the point of intersection for two lines. This video focuses on finding the solution for a system of equations, they are represented as an algebraic expression and a set of linear equations that are...
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
Math Medics

S.o.s. Math: Algebra

For Students 9th - 10th Standards
This lesson provides basic instruction on the major concepts in algebra. Content includes a focus on fractions, units of conversion, complex numbers, quadratic equations, factorization and roots of polynomials, solving equations, systems...
Activity
Interactive Mathematics

Interactive Mathematics: Graphical Solution of Non Linear Systems

For Students 9th - 10th Standards
Using the graphing method, several systems of nonlinear equations are solved. Follow each example step by step to see how solutions are derived.
Activity
Texas Instruments

Texas Instruments: Solving a System of Two Equations Graphically

For Teachers 9th - 10th Standards
This video tutorial shows you how to find the solution of two equations by using the Intersect command on the graph screen.
Activity
Purple Math

Purplemath: Systems of Linear Inequalities

For Students 9th - 10th Standards
This Purplemath lesson describes how to solve a system of linear inequalities by graphing.
Handout
Math Planet

Math Planet: Algebra 1: Graphing Linear Systems

For Students 8th - 9th Standards
Gain an understanding of how to solve linear equations by viewing an example and a video lesson. [3:01]
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei the Circle and the Line

For Teachers 9th - 10th Standards
Students are required to solve a system of equations in this task which will demonstrate their understanding of the correspondence between intersection points of the two graphs and solutions of the system. Aligns with A-REI.C.7.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.c.7 & a rei.d.10: A Linear and Quadratic System

For Teachers 9th - 10th
The purpose of this task is to give students the opportunity to make connections between equations and the geometry of the graphs. Aligns with A-REI.C.7and A-REI.D.10.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.c.6: Estimating a Solution via Graphs

For Teachers 9th - 10th
The purpose of this task is to give learners an opportunity use quantitative and graphical reasoning to detect an error in a solution. Aligns with A-REI.C.6.
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,...
Lesson Plan
Other

Nearpod: Pairs of Linear Equations

For Teachers 7th - 9th Standards
In this instructional activity, students will learn how to solve systems of equations by graphing, substitution, and elimination.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 25 [Pdf]

For Students 9th - 10th Standards
Two equations are simplified by adding them or subtracting them to solve the linear equations. The practice problem is available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 26 [Pdf]

For Students 9th - 10th
Two equations are simplified by adding them or subtracting them to solve the linear equations. The practice problem is available in PDF format.
Website
National Council of Teachers of Mathematics

The Math Forum: Famous Problems in the History of Mathematics

For Students 9th - 10th
On this site, there are several math problems to explore and solve. Look through some solutions by famous mathematicians and expand your thinking about some interesting math concepts. Teachers of elementary grades may want to use this...
Unknown Type
Khan Academy

Khan Academy: Interpret Equations Graphically

For Students 9th - 10th Standards
Practice the connection between the graphical representation of equations and their algebraic solutions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Unit Plan
Khan Academy

Khan Academy: Equations & Inequalities Word Problems

For Students 9th - 10th Standards
HSA-CED.A.1: Interactive resource which create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions....
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.c.6: Accurately Weighing Pennies Ii

For Teachers 9th - 10th Standards
This illustrated math lesson shows how important levels of accuracy in measurement are. The answer can be different since a scale only accurately weighs to the nearest tenth of a gram instead of to the nearest hundredth of a gram. Aligns...
Activity
Texas Instruments

Texas Instruments: Linear Programming Cookie Dough Kits

For Teachers 9th - 10th
In this lesson students explore the concept of linear programming. The students model a real life situation with a system of inequalities and then use their graphing calculators to search for a maximum value for an objective function....