1. Module 3

Mathematics 10-3 Module 3 Introduction

Module 3: Linear Measure

 

Module 3 Introduction

 

A photograph shows a survey stake in some excavated soil at a construction site.

© Jonathan Larsen/shutterstock

 

If you have been around new building sites, you have probably noticed wooden survey stakes. Survey stakes are used to lay out property lines and foundation perimeters, and to mark heights for grading and excavation.

 

Survey stakes are placed in position by surveyors who take careful measurements of distance and depth. What they measure depends on the building plans set out by engineers and architects.

Measuring is important in all kinds of work and activities, ranging from sewing to construction. You may have heard the saying, “Measure twice, cut once.” What does this saying tell you about the importance of measurement?

 

Estimation is another important skill. Have you ever tried to design your own costume for a party or a holiday? How much material did you need, and how did you estimate the quantity before going to buy your supplies?

 

In this module you will learn more about measurement and estimation, and you will learn how both imperial and SI units can be used for both. Be prepared to be active as you investigate the following questions:

  • How are measurement skills used to determine perimeter, circumference, and midpoints?
  • What is essential to the skill of estimation?

You will also use your design from the Unit 1 Project as you work through Module 3 and to complete your Unit 2 Project.

 

Save a copy of the Module 3 Glossary in your course folder now. The Module 3 Glossary is a list of all of the new terms you will see in the lessons. Each time you see a definition, open your copy of the Glossary. Use the space available to add notes or drawings to help your understanding. You will be able to use your personal Glossary as a study tool.