# Operators

In this lesson, we will introduce logical and comparison operators. We will get practise in this by being given different expressions to decode to see if they evaluate to 'true' or 'false' before being tasked with modifying a 'Big Quiz' Scratch program.

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.A selection statement evaluates an expression as what?

1/4

Q2.Which part of the following block of code would be considered the expression?

2/4

Q3.The lines of code following the "else" will only be executed if the expression has evaluated to false

3/4

Q4.What will be the output of this program when it is executed? (What will the sprite say?)

4/4

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.A selection statement evaluates an expression as what?

1/4

Q2.Which part of the following block of code would be considered the expression?

2/4

Q3.The lines of code following the "else" will only be executed if the expression has evaluated to false

3/4

Q4.What will be the output of this program when it is executed? (What will the sprite say?)

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.

Quiz:

# Operators

Helping you to assess what you have learnt this lesson

Q1.The greater than symbol in the image below is an example of a comparison operator or a logic operator?

1/6

Q2.The greater than symbol in the image below is an example of a comparison operator or a logic operator?

2/6

Q3.Does the following statement evaluate as True or False? - (30 < 50) or (30 > 50)

3/6

Q4.Does the following statement as True or False? - (20 = 20) and (15 < 15)

4/6

Q5.Does the following statement as True or False? - not (20 = 20)

5/6

Q6.Which of the conditions would evaluate to ‘true’ with the following inputs? [2 answers]

Select two (2) boxes

6/6

Quiz:

# Operators

Helping you to assess what you have learnt this lesson

Q1.The greater than symbol in the image below is an example of a comparison operator or a logic operator?

1/6

Q2.The greater than symbol in the image below is an example of a comparison operator or a logic operator?

2/6

Q3.Does the following statement evaluate as True or False? - (30 < 50) or (30 > 50)

3/6

Q4.Does the following statement as True or False? - (20 = 20) and (15 < 15)

4/6

Q5.Does the following statement as True or False? - not (20 = 20)

5/6

Q6.Which of the conditions would evaluate to ‘true’ with the following inputs? [2 answers]

Select two (2) boxes

6/6

# Lesson summary: Operators

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga