Module 5

1. Module 5

1.5. Page 5

Mathematics 10-3 Module 5 Lesson 1

 

 

Lesson Summary

 

This photo shows a broom placed in the house by a skip to indicate the required shot.

© Phillip Durand/
shutterstock

A key element of curling strategy is predicting the angles at which rocks will travel after being struck. If you have played the game, there is nothing more satisfying than seeing a well-executed shot. For fans, the satisfaction may be in seeing the side they are cheering for make a double or triple takeout.

In this lesson you explored these questions:

  • How can you sketch and describe angles of various measures?

  • How are referents used to estimate the measure of a given angle?

  • How is the protractor used to measure angles in a variety of orientations?

Check your level of understanding of the materials covered in this lesson by completing “Lesson 1 Traffic Lights.” If you select an amber or red traffic light in the multimedia piece, you will receive information about additional work you can complete to improve your understanding of the topics. Complete the suggested work before you proceed to the Lesson 1 Assignment. If you experience difficulty, contact your teacher before starting the Lesson 1 Assignment.

 

To answer these questions, you reviewed how protractors are used to sketch and measure angles. From their measure, you described these angles as acute, right, obtuse, straight, reflex, or a full rotation. You also explored angle referents, such as 22.5°, 30°, 45°, and 60°, to estimate the measure of any given angle.

 

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 3 Project

 

If angles were poorly understood, there would be no pool “sharks” or curling at the Winter Olympics. Throughout this lesson you looked at various types of angles and saw how they can be identified in many different games and hobbies. The Unit 3 Project deals with geometry found in games and hobbies.

 

Have you read about this project yet? Now is the time. You are at a point where you will have to give some thought to what topic you would like to work on. Let your teacher know what topic you have chosen for your Unit 3 Project.