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Session 3 Part A Part B Homework
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Session 3 Materials:

Measurement Session 3: Measurement Systems

There are two measurement systems used in the United States: the English or U.S. customary system and the metric system. A measurement system consists of units, which are defined in specific ways, and their symbols. Within a system, there are relationships between units, such as between inches and feet in the English system or centimeters and meters in the metric system. In a coherent measuring system, a small number of independent units fit together in simple ways, and all other units are defined in terms of the base units. The metric system is almost completely coherent, whereas the English system is not coherent at all! In this session, you will learn about the metric system. Note 1

For the list of materials that are required and/or optional in this session,
see Note 2.

In This Session:

Part A:

Metric System Basics

Part B:

Metric Units



Learning Objectives

In this session, you will learn to do the following:


Understand the relationships between units within the metric system


Represent quantities using different units


Estimate and measure quantities of length, mass, and capacity, and solve measurement problems


Understand the basic measurement ideas that lead to accurate measurement

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.


New in This Session:



metric system

U.S. customary system

Next > Part A: Metric System Basics

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