# Lights and drums

In this lesson, we will learn how to encode, transmit, and decode short messages using a variety of coding schemes and communication medium (signals, light, sounds, holes in paper, etc.). We will understand that text representation uses sequences of symbols.

# 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:

# Lights and Drums

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

Q1.Decode the following message:- -…|.-|-…|-…|.-|--.|.

1/5

Q2.What does ASCII stand for?

2/5

Q3.Which of the following equipment can be used to transmit message? (Tick 4 boxes)

Select four (4) boxes

3/5

Q4.Rules that allow two or more parties to transmit a message is called?

4/5

Q5.An image in a computer is represented as a sequence of?

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.

Quiz:

# Lights and Drums

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

Q1.Decode the following message:- -…|.-|-…|-…|.-|--.|.

1/5

Q2.What does ASCII stand for?

2/5

Q3.Which of the following equipment can be used to transmit message? (Tick 4 boxes)

Select four (4) boxes

3/5

Q4.Rules that allow two or more parties to transmit a message is called?

4/5

Q5.An image in a computer is represented as a sequence of?

5/5

# Lesson summary: Lights and drums

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## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Dance