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Session 6 Part A Part B Homework
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Session 6 Materials:

Number and Operation Session 6: Number Theory

As part of our exploration of number theory, we will look at two models for finding least common multiples and greatest common factors: the Venn diagram model and the area model. Later in the session, we will explore prime and composite numbers.

For information on required and/or optional material for this session, see Note 1.

In This Session:

Part A:

Models for Multiples and Factors

Part B:

Looking for Prime Numbers



Learning Objectives

In this session, you will do the following:


Understand greatest common factors and least common multiples and how they relate to one another


Understand alternative models and methods for computing greatest common factors and least common multiples


Understand prime and composite numbers


Understand the location of prime numbers within the number system, and use this understanding to determine whether very large numbers are prime

video icon

Throughout the session you will be prompted to view short video segments. In addition to these excerpts, you may choose to watch the full-length video of this session.


Previously Introduced:

New in This Session:


counting numbers
factor tree
prime number

composite number
greatest common factor
least common multiple
Venn diagram

Next > Part A: Models for Multiples and Factors

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