Instructional Video
Khan Academy

Khan Academy: More on Matrix Addition and Scalar Multiplication

9th - 10th Standards
Video shows that the sum of two linear transformations is the sum of their transformation matrices and the scalar multiple of a transformation is the scalar multiple of the transformation matrix.
Instructional Video
Khan Academy

Khan Academy: 3x3 Determinant

9th Standards
Determinants: Finding the determinant of a 3x3 matrix.
Instructional Video
Khan Academy

Khan Academy: Alternate Basis Transformation Matrix Example Part 2

10th Standards
Showing that the transformation matrix with respect to basis B actually works. Brief point on why someone would want to operate in a different basis to begin with.
Instructional Video
Khan Academy

Khan Academy: Alternate Basis Transformation Matrix Example

10th Standards
Example of finding the transformation matrix for an alternate basis.
Instructional Video
Sophia Learning

Sophia: Dot Products: Lesson 2

9th - 10th
This lesson introduces the concept of a dot product and its relationship to matrix operations. It is 2 of 6 in the series titled "Dot Products."
Instructional Video
Sophia Learning

Sophia: Finding the Dot Product: Lesson 2

9th - 10th
This lesson goes over the steps for finding the dot product of a matrix. It is 2 of 7 in the series titled "Finding the Dot Product."
Instructional Video
Sophia Learning

Sophia: Finding the Dot Product: Lesson 3

9th - 10th
This lesson goes over the steps for finding the dot product of a matrix. It is 3 of 7 in the series titled "Finding the Dot Product."
Instructional Video
Sophia Learning

Sophia: Finding the Dot Product: Lesson 5

9th - 10th
This lesson goes over the steps for finding the dot product of a matrix. It is 5 of 7 in the series titled "Finding the Dot Product."
Instructional Video
Sophia Learning

Sophia: Finding the Dot Product: Lesson 6

9th - 10th
This lesson goes over the steps for finding the dot product of a matrix. It is 6 of 7 in the series titled "Finding the Dot Product."
Instructional Video
Sophia Learning

Sophia: Finding the Dot Product: Lesson 1

9th - 10th
This lesson goes over the steps for finding the dot product of a matrix. It is 1 of 7 in the series titled "Finding the Dot Product."
Instructional Video
Sophia Learning

Sophia: Matrices

9th - 10th
This lesson will introduce matrices and how to determine their dimensions.
Instructional Video
Sophia Learning

Sophia: Minors: Lesson 5

9th - 10th
This lesson defines minors and their relationship to determinants. It is 5 of 7 in the series titled "Minors."
Instructional Video
Sophia Learning

Sophia: Minors: Lesson 6

9th - 10th
This lesson defines minors and their relationship to determinants. It is 6 of 7 in the series titled "Minors."
Instructional Video
Sophia Learning

Sophia: Minors: Lesson 1

9th - 10th
This lesson defines minors and their relationship to determinants. It is 1 of 7 in the series titled "Minors."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Large Matrices: Lesson 3

9th - 10th Standards
This lesson demonstrates multiplication of 4x4 and larger matrices. It is 3 of 7 in the series titled "Multiplying Two Large Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Large Matrices: Lesson 5

9th - 10th Standards
This lesson demonstrates multiplication of 4x4 and larger matrices. It is 5 of 7 in the series titled "Multiplying Two Large Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Large Matrices: Lesson 1

9th - 10th Standards
This lesson demonstrates multiplication of 4x4 and larger matrices. It is 1 of 7 in the series titled "Multiplying Two Large Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Medium Matrices: Lesson 1

9th - 10th Standards
This lesson demonstrates multiplication of 3x3 matrices. It is 1 of 7 in the series titled "Multiplying Two Medium Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Medium Matrices: Lesson 2

9th - 10th Standards
This lesson demonstrates multiplication of 3x3 matrices. It is 2 of 7 in the series titled "Multiplying Two Medium Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Medium Matrices: Lesson 6

9th - 10th Standards
This lesson demonstrates multiplication of 3x3 matrices. It is 6 of 7 in the series titled "Multiplying Two Medium Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Small Matrices: Lesson 4

9th - 10th Standards
This lesson demonstrates multiplication of 2x2 matrices. It is 4 of 7 in the series titled "Multiplying Two Small Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Small Matrices: Lesson 6

9th - 10th Standards
This lesson demonstrates multiplication of 2x2 matrices. It is 6 of 7 in the series titled "Multiplying Two Small Matrices."
Instructional Video
Sophia Learning

Sophia: Multiplying Two Small Matrices: Lesson 1

9th - 10th Standards
This lesson demonstrates multiplication of 2x2 matrices. It is 1 of 7 in the series titled "Multiplying Two Small Matrices."
Instructional Video
Sophia Learning

Sophia: Sarrus' Rule: Lesson 5

9th - 10th
This lesson introduces Sarrus' rule. It is 5 of 6 in the series titled "Sarrus' Rule."