Functions

Functions are a type of subroutine that allow you to return a value. You have used them before when you have used code like print() and input(). In this lesson you will explore how to create your own functions.

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.

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.In the image above, how many parameters does the subroutine "calculate" take?

1/3

Q2.In the image above, which one of the statements below best describes what is happening at line 10?

2/3

Q3.Using the image above, on line 1, are "a" and "b" described as arguments or parameters?

3/3

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.

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.In the image above, how many parameters does the subroutine "calculate" take?

1/3

Q2.In the image above, which one of the statements below best describes what is happening at line 10?

2/3

Q3.Using the image above, on line 1, are "a" and "b" described as arguments or parameters?

3/3

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.

Quiz:

Functions

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

Q1.What will be the return value based on the function call to_the_power(3,2)?

1/3

Q2.What will be the return value based on the function call find_highest(12,9)?

2/3

Q3.What will be the return value based on the function call multiple(30,3)?

3/3

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.

Quiz:

Functions

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

Q1.What will be the return value based on the function call to_the_power(3,2)?

1/3

Q2.What will be the return value based on the function call find_highest(12,9)?

2/3

Q3.What will be the return value based on the function call multiple(30,3)?

3/3

Lesson summary: Functions

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Time to move!

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Programming 4: Subroutines
is:
Scope

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