# 2D Arrays and lists

In this lesson you will learn about 2D arrays and lists. You will discover new syntax for creating and using them in your programs.

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!

## Question 3

Q1.What are the three possible outputs from this program when it is executed? [SELECT THREE]

Select three (3) boxes

1/3

Q2.Which of these is the correct import statement for importing the sense hat module?

2/3

Q3.If you want a block of code to repeat forever, what statement should you use?

3/3

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!

## Question 3

Q1.What are the three possible outputs from this program when it is executed? [SELECT THREE]

Select three (3) boxes

1/3

Q2.Which of these is the correct import statement for importing the sense hat module?

2/3

Q3.If you want a block of code to repeat forever, what statement should you use?

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.

Quiz:

# 2D Arrays and Lists

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

## Question 3

Q1.What will the output be when this program is executed?

1/3

Q2.If the user enters Bob when prompted, what will be the output?

2/3

Q3.Is this a definition for a 2D array or a 2D list? A __________ must be a predefined fixed size and each item held must be of the same data type.

3/3

Quiz:

# 2D Arrays and Lists

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

## Question 3

Q1.What will the output be when this program is executed?

1/3

Q2.If the user enters Bob when prompted, what will be the output?

2/3

Q3.Is this a definition for a 2D array or a 2D list? A __________ must be a predefined fixed size and each item held must be of the same data type.

3/3

# Lesson summary: 2D Arrays and lists

### Time to move!

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For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga

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