Sophia Learning
Sophia: Matrix Notation: Lesson 4
In this lesson, students learn how to indicate a matrix. This is part of a group of lessons on early linear algebra concepts. It is 4 of 4 in the series titled "Matrix Notation."
Sophia Learning
Sophia: Using Determinants to Classify 2x2 Matrices
This lesson demonstrates how the determinant of a 2x2 matrix can be used to tell whether or not the matrix represents a dependent linear system, an inconsistent linear system, or neither.
Sophia Learning
Sophia: Vectors and Tensors: Lesson 3
In this lesson, students are introduced to vectors and tensors, and their significance when working with matrices. Students should be familiar with the concept of a matrix before beginning this lesson. It is 3 of 4 in the series titled...
Sophia Learning
Sophia: Matrix Addition and Subtraction
This lesson explains how to add and subtract matrices when it is possible to do so, noting matrix addition is commutative and associative. [2:59]