Instructional Video3:10
Curated OER

What's Another Definition for Prime and Composite Numbers?

5th - 8th
Simply put, a prime number is a number that is divisible only by one and itself. All other numbers are composite.
Instructional Video3:45
Curated OER

What's Another Definition for Prime and Composite Numbers?

6th - 12th
Simply put, a prime number is a number that is divisible only by one and itself. All other numbers are composite.
Instructional Video
Other

3d Shapes for Children to Learn

1st Standards
In this video a train carries 3d shapes (geometric solids) to the construction site.
Instructional Video
Sophia Learning

Sophia: Finding Data on a Bar Graph: Lesson 2

4th - 8th
In this lesson, students see how to extract information from a bar graph. It is 2 of 7 in the series titled "Finding Data on a Bar Graph."
Instructional Video
Khan Academy

Khan Academy: Randomized Algorithms: Random Primality Test (Warm Up)

9th - 10th
Introduction to random primality tests & how they will work (warm up).
Instructional Video
Khan Academy

Khan Academy: Randomized Algorithms: Fermat Primality Test

9th - 10th
This video is part 10 of a series. It shows a quick outline of how & why it works.
Instructional Video
Khan Academy

Khan Academy: Evaluating Function Expressions

9th - 10th
In this video students learn to evaluate composite functions.
Instructional Video
Loyola University Chicago

Math Flix: Prime Numbers: Seen in Graphics

3rd - 8th Standards
This QuickTime movie provides an explanation of just what prime numbers are using graphics. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept.
Instructional Video
Sophia Learning

Sophia: Divisibility Rules: Lesson 10

4th - 6th
This lesson introduces the rules of divisibility. It is 10 of 11 in the series titled "Divisibility Rules."
Instructional Video
Sophia Learning

Sophia: Divisibility Rules: Lesson 2

4th - 6th
This lesson introduces the rules of divisibility. It is 2 of 11 in the series titled "Divisibility Rules."
Instructional Video
Sophia Learning

Sophia: Divisibility Rules: Lesson 7

4th - 6th
This lesson introduces the rules of divisibility. It is 7 of 11 in the series titled "Divisibility Rules."
Instructional Video
Sophia Learning

Sophia: Shape Combining: Lesson 3

9th - 10th
In this lesson, students see that they can combine shapes to create a new, composite shape. It is 3 of 4 in the series titled "Shape Combining."
Instructional Video
Sophia Learning

Sophia: Shape Dividing: Lesson 2

9th - 10th
Students see that shapes can be divided in order to form new shapes. This lesson is 2 of 5 in the series titled "Shape Dividing."
Instructional Video
Sophia Learning

Sophia: Divisibility Rules

4th - 6th
This lesson introduces the rules of divisibility.
Instructional Video
Sophia Learning

Sophia: Divisibility Rules

4th - 6th
This lesson introduces the rules of divisibility.
Instructional Video
Sophia Learning

Sophia: Building Composite Shapes: Lesson 1

7th - 8th
This lesson demonstrates how to create composite shapes by combining other shapes. It is 1 of 10 in the series titled "Building Composite Shapes."