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Lesson Materials

Lesson 1-6
Prime and Composite

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Objective

SOL 6.3 The student will identify and describe prime and composite numbers and identify and describe the characteristics of even and odd integers.

 Animation Close 
Prime number sieve
 DirectionsClose 

Print and complete using video at left.


 Hands-On Activities Close 
Investigate what prime numbers are used for.
 Other Web Sites Close 
  1. National Library of Virtual Manipulatives Link
    2. Interactive factor tree.
  2. Crypto Club Math Link
    3. Another interactive factor tree with sound.
 Puzzles & Problems tangram Close 
Numbers that are not prime are called composite. Composite numbers can be further classified as deficient, abundant, and perfect. All prime numbers can also be classified as deficient. Define and find examples of each of these. What other ways do mathematicians classify numbers and even pairs of numbers?