# Ch 4: 8th Grade Math: Number Theory

This chapter consists of engaging online video lessons that make learning about number theory fun for 8th grade students. Check students' understanding of each lesson with a short practice quiz.

## Number Theory - Chapter Summary

The video lessons in the Number Theory chapter could assist you in teaching the students in your 8th grade class how to find prime factorization with exponents or the least common multiple. There is a chapter exam at the end for further assessment of students' comprehension of number theory.

## Chapter Lessons and Objectives

Lesson Objective
Converting Numbers to Scientific Notation Students learn how to write very large and small numbers using scientific notation, and how to convert to scientific notation.
Comparing Numbers Written in Scientific Notation In this lesson, students learn how to compare numbers that are expressed with scientific notation.
Identifying Prime and Composite Numbers This lesson teaches students how to differentiate between prime and composite numbers.
How to Find the Prime Factorization of a Number In this lesson, techniques for finding the prime factorization of numbers are presented.
Finding the Prime Factorization with Exponents Students are taught how to factor numbers with prime numbers and exponents.
How to Find the Greatest Common Factor The instructor defines what a factor is and teaches students how to determine the greatest common factor.
How to Find the Least Common Multiple This lesson covers how the least common multiple can be found.
Using Prime Factorizations to Find the Least Common Multiples The process of finding least common multiples with prime factorizations is explored in this lesson.
Word Problems: Greatest Common Factor & Least Common Multiple In this lesson, students learn techniques for understanding and completing greatest common factor and least common multiple word problems.

9 Lessons in Chapter 4: 8th Grade Math: Number Theory
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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