# Solve problems involving scale factor in shapes

In this lesson, we will solve problems involving scale factor. We will introduce the vocabulary 'similar' and 'scale factor'. We will determine the scale factor of enlargement for various transformations.

#### 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.What is the ratio of squares to hexagons?

1/4

Q2.What is the ratio of hexagons to squares?

2/4

Q3.Sarah is making chocolate chip cookies. For every 6 milk chocolate cookies she makes, she makes 1 white chocolate cookie. What is the ratio of milk chocolate to white chocolate cookies?

3/4

Q4.Zak bakes chocolate muffins and blueberry muffins in the ratio 3:1. If he makes 24 muffins, how many are chocolate?

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.What is the ratio of squares to hexagons?

1/4

Q2.What is the ratio of hexagons to squares?

2/4

Q3.Sarah is making chocolate chip cookies. For every 6 milk chocolate cookies she makes, she makes 1 white chocolate cookie. What is the ratio of milk chocolate to white chocolate cookies?

3/4

Q4.Zak bakes chocolate muffins and blueberry muffins in the ratio 3:1. If he makes 24 muffins, how many are chocolate?

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:

# solve problems involving scale factor in shapes

Solve problems involving scale factor in shape.

Q1.Square B is an enlargement of square A. What is the scale factor of this enlargement?

1/3

Q2.Triangle B is an enlargement of triangle A. What is the scale factor of this enlargement?

2/3

Q3.Rectangle A has been enlarged by scale factor 6. What is the missing dimension on rectangle B?

3/3

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

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

# solve problems involving scale factor in shapes

Solve problems involving scale factor in shape.

Q1.Square B is an enlargement of square A. What is the scale factor of this enlargement?

1/3

Q2.Triangle B is an enlargement of triangle A. What is the scale factor of this enlargement?

2/3

Q3.Rectangle A has been enlarged by scale factor 6. What is the missing dimension on rectangle B?

3/3

# Lesson summary: Solve problems involving scale factor in shapes

## Time to move!

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

For 5 mins...

Move around:
Jog

On the spot:
Dance