# Reading angles on a protractor Part 3

In this lesson, we will learn how to use a protractor to calculate and measure a reflex angle and an angle in a shape.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What error has the user made?

1/4

Q2.How big is angle C?

2/4

Q3.How big is angle B?

3/4

Q4.What is the approximate size of an internal angle of this regular pentagon?

4/4

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What error has the user made?

1/4

Q2.How big is angle C?

2/4

Q3.How big is angle B?

3/4

Q4.What is the approximate size of an internal angle of this regular pentagon?

4/4

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Reading angles on a protractor part 3

Measuring reflex angles Source of all images : Mr Kelsall or Oak National Academy

Q1.What is the size of this reflex angle?

1/4

Q2.Which angle is this protractor measuring?

2/4

Q3.How many degrees is this angle?

3/4

Q4.How many degrees is this angle?

4/4

Quiz:

# Reading angles on a protractor part 3

Measuring reflex angles Source of all images : Mr Kelsall or Oak National Academy

Q1.What is the size of this reflex angle?

1/4

Q2.Which angle is this protractor measuring?

2/4

Q3.How many degrees is this angle?

3/4

Q4.How many degrees is this angle?

4/4

# Lesson summary: Reading angles on a protractor Part 3

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga