Reflection: Grappling with Complexity As A Matter Of Factors - Section 2: Is it a Factor



Most of my students seem to have a hard time understanding the concept of prime and composite numbers. Also, my students could not determine the relationship of factors and multiples, and how multiplication and division are used to help them develop concepts of factors and multiples.

 For example, 2 is prime but 4, 6, 8, 10, 12,… are composite. Encourage the development of rules that can be used to aid in the determination of composite numbers. For example, other than 2, if a number ends in an even number (0, 2, 4, 6 and 8), it is a composite number.

I basically gave them some additional time to explore how this all works.


  What I noticed!
  Grappling with Complexity: What I noticed!
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As A Matter Of Factors

Unit 1: Back To Understanding the Basics!
Lesson 13 of 16

Objective: 4.OA.4 TSWBAT find all factor pairs for a whole number in the range 1–100. Recognize that a whole number is a multiple of each of its factors.

Big Idea: When listing factor pairs, students sometimes forget to list the numbers itself as part of the factor.

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Math, factors, repeated patterns, prime, composite, mulitple, mulitplication, Explanation
  75 minutes
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