# Inverse proportion in context

In this lesson, we will interpret, solve and model solutions to inverse proportion problems.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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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 in the gaps: Two quantities a and b are said to be directly proportional if one quantity is always a constant ........ of the other.

1/5

Q2.Fill in the gaps: Two quantities x and y are said to be inversely proportional if x increases as y ............... at the same rate, so their product is constant.

2/5

Q3.Fill in the gaps: Two variable quantities are said to be ........................ proportional if the product of the two quantities is constant.

3/5

Q4.Three builders take 15 days to complete a project. How many days does would it take one builder?

4/5

Q5.It takes 4 friends 6 hours to clean the garden. How long will it take 2?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### 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 in the gaps: Two quantities a and b are said to be directly proportional if one quantity is always a constant ........ of the other.

1/5

Q2.Fill in the gaps: Two quantities x and y are said to be inversely proportional if x increases as y ............... at the same rate, so their product is constant.

2/5

Q3.Fill in the gaps: Two variable quantities are said to be ........................ proportional if the product of the two quantities is constant.

3/5

Q4.Three builders take 15 days to complete a project. How many days does would it take one builder?

4/5

Q5.It takes 4 friends 6 hours to clean the garden. How long will it take 2?

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.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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

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

# Inverse proportion in context

Exit Quiz

Q1.It takes 4 builders 6 days to build a wall. How long will it take 2 builders?

1/5

Q2.It takes builders 6 days to build a wall. How long will it take 8 builders?

2/5

Q3.It takes 2 people 3 hours to clean the house. How long does it take 6 people to clean?

3/5

Q4.A journey takes 6 hours if driving at 30 mph. How long should the same journey if the driver drives ta 60mph?

4/5

Q5.True or False: The circumference of a circle and its diameter are inversely proportional?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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

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

# Inverse proportion in context

Exit Quiz

Q1.It takes 4 builders 6 days to build a wall. How long will it take 2 builders?

1/5

Q2.It takes builders 6 days to build a wall. How long will it take 8 builders?

2/5

Q3.It takes 2 people 3 hours to clean the house. How long does it take 6 people to clean?

3/5

Q4.A journey takes 6 hours if driving at 30 mph. How long should the same journey if the driver drives ta 60mph?

4/5

Q5.True or False: The circumference of a circle and its diameter are inversely proportional?

5/5

# Lesson summary: Inverse proportion in context

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## Time to move!

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For 5 mins...

Move around:
Jog

On the spot:
Dance