Module 4

Module 4: Area

 

Lesson Summary

 

Many young couples dream of owning a home. If you have looked at home advertisements in flyers or in the newspaper, you will have seen that the area of houses for sale is quoted in either square feet or square metres. These areas, derived from real estate agents’ measurements, are only estimates. This lesson dealt with area estimates too.

 

In this lesson you explored these questions:

• How are referents used to estimate area measurements using SI and imperial units?

• In what situations are SI and/or imperial units for measurement used?

• How can the area of a regular or irregular shape be estimated using an SI or imperial grid?

You discovered that your skill in estimating area depends on associating linear units in both the SI and imperial systems with common items, such as the top of a card table for the square yard. These items are called referents, and your referents are likely different from another person’s referents.

 

Also, you practised estimating areas in problem situations to confirm whether or not your calculated answers were reasonable. You even estimated non-routine areas using grids.

 

Assignment

 

Retrieve the Lesson 1 Assignment Booklet you saved in your course folder at the start of this lesson. Complete the Assignment. Resave your Assignment Booklet in your course folder and submit a copy to your teacher for assessment.

 

Unit 2 Project

 

Before you move on to the next lesson, you should start thinking about how you can apply the area skills you mastered in Lesson 1 to the Unit 2 Project.

 

Mathematics 10-3 Learn EveryWare © 2010 Alberta Education