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Chapter 1: Units and Problem Solving

Difficulty Level: At Grade Created by: CK-12
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The Big Idea

Units identify what a specific number refers to. For instance, the number 42 can be used to represent 42 miles, 42 pounds, or 42 elephants! Numbers are mathematical objects, but units give them physical meaning. Keeping track of units can help you avoid mistakes when you work out problems.

Chapter Outline

Chapter Summary


In this chapter, students will learn how to work with the metric system, how to do unit conversions using dimensional analysis and how to work with vectors.

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Difficulty Level:
At Grade
Date Created:
Feb 24, 2012
Last Modified:
Apr 21, 2017
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