Unit Plan
CK-12 Foundation

Ck 12: Algebra: Writing and Solving a Matrix Equation

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a matrix equation to solve a system of linear equations.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Solving a Matrix Equation

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a matrix equation.
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Khan Academy

Khan Academy: Matrix Equations: Addition and Subtraction

For Students 9th - 10th Standards
Solve equations where the unknown is a matrix, by using matrix addition and subtraction. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive hints.
Unknown Type
Khan Academy

Khan Academy: Matrix Equations: Scalar Multiplication

For Students 9th - 10th Standards
Solve equations where the unknown is a matrix by using multiplication by a scalar. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive hints.
Activity
J Coffman

Joseph Coffman's Lecture Notes: Adding and Subtracting Matrices

For Students 9th - 10th Standards
Students learn about matrix subtraction, matrix addition, and matrix equations. An assessment is included to check for comprehension of the concepts.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Augmented Matrices

For Students 9th - 10th Standards
Seventeen problems present a variety of practice working with augmented matrices. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button...
Activity
Mathematics Archives

Math Archives: Linear Equation Programs

For Students 9th - 10th Standards
This site contains a downloadable tool that can solve up to 30 simultaneous linear equations in 30 unknowns.
Unknown Type
Khan Academy

Khan Academy: Precalculus: Matrix Row Operations

For Students 9th - 10th Standards
Determine the matrix that is the result of performing a specific row operation on a given matrix. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Matrix Algebra

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers simplifying matrix expressions using all the previously learned matrix operations.
Activity
Analyze Math

Analyze Math: Calculate Determinant of a Matrix

For Students 9th - 10th Standards
Learners explore the Algebra II topic of matrices. The tutorial demonstrates how to calculate the determinant of 2 by 2 and 3 by 3 matrices. The activity includes examples with detailed solutions.
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: Solving Systems by Multiplying One Equation

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving systems by multiplying one equation by a constant to eliminate a variable.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Systems With Multiplication

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Solve linear systems using multiplication.
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.
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.
Activity
Stefan Warner and Steven R. Costenoble

Finite Mathematics & Applied Calculus: Topic Summaries: Systems of Linear Equations and Matrices

For Students 9th - 10th Standards
The topic summary outlines systems of linear equations and matrices. Some topics reviewed are linear equations in two unknowns, augmented matrix, and Gauss Jordan row reduction. The resource consists of definitions, notes, and examples.
Activity
Texas Instruments

Texas Instruments: Matrices and Linear Equations

For Teachers 9th - 10th Standards
This Computer Algebra System (CAS) activity encourages students to investigate addition, subtraction, and multiplication of matrices. They find the inverse of a matrix. Students also solve a set of linear equations by using matrices.
Activity
Stefan Warner and Steven R. Costenoble

Finite Mathematics & Applied Calculus: Topic Summaries: Matrix Algebra

For Students 9th - 10th Standards
The topic summary outlines matrix algebra. Some topics reviewed are operations with matrices, matrix inverse, and algebra of matrices. The resource consists of definitions, notes, and examples.
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Matrix Operations

For Teachers 9th - 10th Standards
Based off of the hit television show NUMB3RS, this lesson shows students how using matrix multiplication can lead to solving real-world problems. In this situation, a painting is missing and the probability of travel betweek five cities...
Activity
University of Regina (Canada)

University of Regina: Math Central: How to Augment a Matrix

For Students 9th - 10th Standards
In easy to follow steps, this resource replies to a student's question on how to augment a matrix.
Activity
Stefan Warner and Steven R. Costenoble

Finite Mathematics & Applied Calculus: The Matrix of a System and Row Operations

For Students 9th - 10th Standards
The tutorial examines the matrix of a system and row operations. Students learn about the concepts through class notes, examples, and practice problems. Topics include a system of linear equations and augmented matrices. Review exercises...
Handout
Oak Ridge National Laboratory

Ornl: 7 Gaussian Elimination on Band Matrices

For Students 9th - 10th Standards
This site gives an example of solving a system of equations with the use of Gaussian Elimination.
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.

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