Module 5

Module 5: Angles

 

Lesson 1: Sketching and Measuring Angles

 

Focus

 

Cue sports, such as snooker, require a steady hand, practice, and an eye for angles. What separates the novice and the skilled player is the ability to predict how the billiard balls will behave when struck and when they carom off the cushions. Spaced at regular intervals along the table’s perimeter are diamond shapes, which assist a player in assessing possible angles to line up the shot. When a cue ball strikes another ball, what is the largest possible angle the struck ball can be deflected from the line along which the cue ball was travelling?

 

Lesson Questions

 

In this lesson you will explore 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?

Assessment

 

You will complete the Lesson 1 Assignment Booklet for assessment. Download the Lesson 1 Assignment Booklet and save it in your course folder now. You will receive instructions on how to complete the Assignment Booklet later in the lesson. You will also be prompted to start working on the Unit 3 Project.

 

There are other activities that you will complete throughout this lesson. It is important to complete all activities and save them in your course folder. Your teacher may ask to see your work at any time.

 

The lesson provides you with opportunities to investigate, review examples, and practise the knowledge and skills you are learning. In Self-Check activities you can compare your answers to see if you are on track. If you are having difficulty with concepts or calculations, contact your teacher.

 

Required Materials and Equipment

 

For this lesson you will need

• a protractor

• a ruler

• several blank sheets of paper

• a calculator

Mathematics 10-3 Learn EveryWare © 2010 Alberta Education