# Enlarge an Object with a Positive Scale Factor

In this lesson, we will enlarge objects by a given scale factor, and identify scale factors.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.Shape A has been rotated 180° onto shape B. What is the centre of rotation?

1/4

Q2.Shape A has been rotated 90° clockwise onto shape B. What is the centre of rotation?

2/4

Q3.State the degrees and direction in which shape A is rotated onto shape B.

3/4

Q4.State the centre of rotation for shape A onto shape B.

4/4

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.Shape A has been rotated 180° onto shape B. What is the centre of rotation?

1/4

Q2.Shape A has been rotated 90° clockwise onto shape B. What is the centre of rotation?

2/4

Q3.State the degrees and direction in which shape A is rotated onto shape B.

3/4

Q4.State the centre of rotation for shape A onto shape B.

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Enlarge an Object with a Positive Scale Factor

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the scale factor from triangle B to D?

1/3

Q2.What is the scale factor from triangle B to C?

2/3

Q3.Which diagram shows shape H correctly enlarged by a scale factor of 3?

3/3

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Enlarge an Object with a Positive Scale Factor

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the scale factor from triangle B to D?

1/3

Q2.What is the scale factor from triangle B to C?

2/3

Q3.Which diagram shows shape H correctly enlarged by a scale factor of 3?

3/3

# Lesson summary: Enlarge an Object with a Positive Scale Factor

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Dance