The only factor to consider in determining prime numbers is the factors of the number. Young mathematicians learn to identify prime numbers. They see that a prime number is any number with only one and itself as its factors.

Concepts

prime numbers, composite numbers, numbers

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Additional Tags

math

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Instructional Ideas

• Have learners create graphic organizers classifying numbers as prime or composite
  

Classroom Considerations

• Scholars must be able to find factors of numbers
• Note that the video does not use the term composite number
  

Pros

• Includes a separate worksheet of practice problems
• Thorough explanations are easy to understand
  

Cons

• None

Common Core

4.OA.B.4