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Handout
Johan Claeys

Math Abundance: An Introduction to Matrices

For Students 9th - 10th Standards
An excellent site on matrices.
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Handout
Purple Math

Purplemath: Scalar and Matrix Multiplication

For Students 9th - 10th Standards
With several easy-to-understand examples worked out, this lesson demonstrates the steps needed to multiply a matrix by a scalar (a constant). True "Matrix multiplication," where two matrices are multiplied to eachother is also...
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Handout
Purple Math

Purplemath: Matrix Multiplication/the Identity Matrix

For Students 10th - 12th Standards
Definitions, examples, and detailed explanation of matrix multiplication and the identity matrix.
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Interactive
Cool Math

Coolmath: What's a Matrix?

For Students 10th - 12th Standards
Description and examples of matrices.
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Activity
Math Medics

S.o.s. Math: Multiplication of Matrices

For Students 9th - 10th Standards
This tutorial gives students an introduction to matrix multiplication with definitions and examples.
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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.
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Unknown Type
Khan Academy

Khan Academy: Multiply Matrices by Scalars

For Students 9th - 10th Standards
Find the matrix that is a result of multiplying a given matrix by a given scalar. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Activity
Analyze Math

Analyze Math: Matrix Addition and Multiplication

For Students 9th - 10th Standards
Learners explore the discrete mathematics topic of matrices. The tutorial demonstrates how to add and multiply matrices. Some topics explored are scalar multiplication, multiplication of two matrices, square matrices, and addition of two...
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Unit Plan
CK-12 Foundation

Ck 12: Multiplying Matrices by a Scalar

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Multiply matrices by scalars to produce new matrices, e.g., as when all of the payoffs in a game are doubled.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Multiplying Matrices by a Scalar

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers multiplying matrices by a scalar number. Students examine guided notes, review guided practice and attempt practice problems.
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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.
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Website
Cool Math

Coolmath: Solving Systems Using Matrices

For Students 9th - 10th Standards
This CoolMath resource will help students learn how to solve systems using matrices.
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Website
Cool Math

Coolmath: Multiplying Matrices

For Students 9th - 10th Standards
This CoolMath resource will help students understand how to multiply matrices.
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Website
Cool Math

Coolmath: Scalar Multiplication

For Students 9th - 10th Standards
This CoolMath resource will help students understand the concept of scalar multiplication.
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Handout
Cool Math

Coolmath: Inverse Matrices

For Students 9th - 10th Standards
You can add and subtract matrices, multiply a matrix by a scalar, and multiply two matrices. So, what about division? Well, there isn't a division process for matrices. See this example for how to get around this problem!
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Lesson Plan
Cuemath

Cuemath: How to Solve Matrices

For Teachers 9th - 10th Standards
In this mini-instructional activity, 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...
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Handout
Math Notes and Math Tests

Pre Calculus Notes: Operations With Matrices [Pdf]

For Students 9th - 10th Standards
Students explore operations with matrices. Topics examined are matrix addition, scalar multiplication, matrix multiplication, and identity matrices. Class notes and examples are included.
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PPT
Sophia Learning

Sophia: Matrix Multiplication: Lesson 3

For Students 9th - 10th Standards
This lesson introduces matrix multiplication, distinguishes it from multiplying by a scalar, and provides examples of the operation. It is 3 of 2 in the series titled "matrix multiplication."
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PPT
Sophia Learning

Sophia: Matrix Multiplication: Lesson 5

For Students 9th - 10th Standards
This lesson introduces matrix multiplication, distinguishes it from multiplying by a scalar, and provides examples of the operation. It is 5 of 2 in the series titled "Matrix Multiplication."
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PPT
Sophia Learning

Sophia: Multiplying Matrices by Scalar Values: Lesson 3

For Students 9th - 10th Standards
This lesson explains how to multiply a matrix by a scalar. It is 3 of 5 in the series titled "Multiplying Matrices by Scalar Values."
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PPT
Sophia Learning

Sophia: Multiplying Matrices by Scalar Values: Lesson 5

For Students 9th - 10th Standards
This lesson explains how to multiply a matrix by a scalar. It is 5 of 5 in the series titled "Multiplying Matrices by Scalar Values."
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PPT
Sophia Learning

Sophia: Scalar Multiplication: Lesson 3

For Students 9th - 10th Standards
This brief lesson will introduce scalars, and demonstrate how to perform scalar multiplication with matrices. It is 3 of 10 in the series titled "Scalar Multiplication."
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PPT
Sophia Learning

Sophia: Writing Systems of Equations With Augmented Matrices: Lesson 4

For Students 9th - 10th Standards
This lesson demonstrates how to write systems of equations as augmented matrices. It is 4 of 5 in the series titled "Writing Systems of Equations with Augmented Matrices."
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PPT
Sophia Learning

Sophia: Writing Systems of Equations With Augmented Matrices #4

For Students 9th - 10th Standards
This lesson demonstrates how to write systems of equations as augmented matrices.