Instructional Video
Study Pug

Study Pug: Complex Numbers and Complex Planes

9th - 10th Standards
Watch this video to learn what makes up a complex number, as well as how to plot on a complex plane. [5:45]
Instructional Video
Sophia Learning

Sophia: Multiplying Rationals: Lesson 4

9th - 10th Standards
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 4 of 6 in the series titled "Multiplying Rationals."
Instructional Video
Sophia Learning

Sophia: Multiplying Rationals: Lesson 5

9th - 10th Standards
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 5 of 6 in the series titled "Multiplying Rationals."
Instructional Video
Sophia Learning

Sophia: Multiplying Rationals: Lesson 6

9th - 10th Standards
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 6 of 6 in the series titled "Multiplying Rationals."
Instructional Video
Sophia Learning

Sophia: Multiplying Rationals: Lesson 1

9th - 10th Standards
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 1 of 6 in the series titled "Multiplying Rationals."
Instructional Video
Khan Academy

Khan Academy: Other Cool Stuff: 9.999, Reasons That .9999 = 1

9th - 10th
Video exploring number theory concepts such as real, hyperreal, and surreal numbers, and infinity.
Instructional Video
Sophia Learning

Sophia: Linear Inequalities With All Real Numbers Solution

9th - 10th
Multi-step inequalities with real number solution sets are investigated in this video lesson. The tutorial includes detailed examples.
Instructional Video
Shmoop University

Shmoop: Absolute Value

9th - 10th Standards
This resource provides a short video about finding absolute value.