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Lesson 8: Fly cat, fly!

Year 7 - Programming essentials in Scratch: part II

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Predict

Starter activity

Think, pair, share

This code is for a sprite called building.

Make a prediction about what might happen to the building when this code is executed.

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Lesson 8: Fly cat, fly!

Objectives

In this lesson, you will:

  • Identify where condition-controlled iteration can be used in a program
  • Implement condition-controlled iteration in a program

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Run

Activity 1

With a partner, run the Scratch code at the link provided.

  • Were your predictions correct?
  • Did anything surprise you about the code?
  • Did you miss anything out?

ncce.io/flycatfly

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Investigate

Activity 2

  • Open the ‘Investigate the code’ worksheet
  • Complete the first three questions with your teacher

ncce.io/flycatfly

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Investigate

Activity 2

What is the following block of code being used for?

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What happens when you set x to 50?

Remember to change x back to 280

ncce.io/flycatfly

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Investigate

Activity 2

What is the following block of code being used for?

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What happens when you change x by -30?

Remember to change it back to -10

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ncce.io/flycatfly

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Investigate

Activity 2

How do these two blocks relate to each other?

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ncce.io/flycatfly

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Investigate

Activity 2

  • Complete the next four questions with your partner
  • Then complete the rest of the questions on your own

ncce.io/flycatfly

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Modify: A pair programming activity

Activity 3

  • Open the ‘Modify the code’ worksheet
  • Complete the activities to add gravity to Scratch the cat
  • Remember to switch roles every five minutes

Explorer task

  • Use the tips from the bottom of your worksheet to further extend your game

ncce.io/flycatfly

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Explain how each condition-controlled iteration (loop) works

Plenary

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Next lesson

Summary

In this lesson, you…

  • Identified where condition-controlled iteration can be used in a program
  • Implemented condition-controlled iteration in a program

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Next lesson, you will…

  • Evaluate which type of iteration is required in a program

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Homework: Repeat until loops

Homework

Complete the homework questions on the sheet provided

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Due: Next lesson

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