# Enlargement by a negative scale factor

In this lesson, we will learn how to enlarge a shape by a negative scale factor. It would be helpful if you could have squared paper and a ruler for this lesson.

#### 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.Fill the gap: if the scale factor of an enlargement is ____________ 1, then the image is larger than the object.

1/5

Q2.Fill in the gap: if the scale factor of an enlargement is __________ 1, then the image is smaller than the object

2/5

Q3.In the diagram, P is the...

3/5

Q4.Fill in the gap: the distances from P to each of the points on the enlarged shape are __________ the distances from P to each of the corresponding points on the original shape.

4/5

Q5.Fill in the gaps: shape ABCD has been __________ by scale factor ______, with _____ of enlargement (0,3).

5/5

#### 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.Fill the gap: if the scale factor of an enlargement is ____________ 1, then the image is larger than the object.

1/5

Q2.Fill in the gap: if the scale factor of an enlargement is __________ 1, then the image is smaller than the object

2/5

Q3.In the diagram, P is the...

3/5

Q4.Fill in the gap: the distances from P to each of the points on the enlarged shape are __________ the distances from P to each of the corresponding points on the original shape.

4/5

Q5.Fill in the gaps: shape ABCD has been __________ by scale factor ______, with _____ of enlargement (0,3).

5/5

# 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:

# Enlargement by a negative scale factor quiz

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

Q1.Which of the following options best describes an enlargement of scale factor -1?

1/5

Q2.Which of the following options best describes an enlargement where the scale factor is less than -1?

2/5

Q3.Which of the below images show a correct enlargement of scale factor -1, about the given point?

3/5

Q4.Which of the below images show a correct enlargement of scale factor -2, about the given point?

4/5

Q5.Which of the following statements is incorrect?

5/5

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

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

# Enlargement by a negative scale factor quiz

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

Q1.Which of the following options best describes an enlargement of scale factor -1?

1/5

Q2.Which of the following options best describes an enlargement where the scale factor is less than -1?

2/5

Q3.Which of the below images show a correct enlargement of scale factor -1, about the given point?

3/5

Q4.Which of the below images show a correct enlargement of scale factor -2, about the given point?

4/5

Q5.Which of the following statements is incorrect?

5/5

# Lesson summary: Enlargement by a negative scale factor

## 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