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Prime Numbers

About the Prime Numbers Lesson

Summary
This lesson introduce prime and composite numbers. It gives the children an opportunity to use the sieve method to identify the prime numbers from 1 to 100.

Objectives
• to show the difference between prime and composite numbers;

• to show how the Sieve method can be used to identify prime numbers.

Suggested Grades
4th Grade
5th Grade
6th Grade

Excerpt
What is the difference between a prime number and a composite number?

? A prime number is a number with only two factors - itself and 1.
? A composite number has more than two factors.

What is a factor?

A factor is a number which divides evenly into another number.

Continued...

 



PRIME NUMBERS LESSON PLAN WORKSHEET ACTIVITY

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