Y4 Unit 10

Unit 10
Be a game developer

By Jolanda Edmond

Learning objectives

1. Follow and understand algorithms that use a sub-routine.

2. Know how to develop algorithms that include repetition.

3. Know how to test different parts of a program systematically to identify and debug errors.

Sub-routine

Making sub-routine

1. Click "My Blocks" group.

2. Click "Make a Block".

3. Name your sub-routine. Example: Jump

Multiple Choice

Computer programs can contain sub-routine.

• True

• False

Multiple Choice

What is sub-routine in programming?

• A loop that repeats forever

• A block of code that stores numbers

• A set of instructions designed to perform a frequently-used operation

• A part of the program that runs only at the end

Multiple Choice

Which group do we click to create a sub-routine block?

Example

Using repetition

Using repetition

Example

Multiple Choice

What is the main characteristic of an indefinite (forever) loop?

• It repeats a set number of times

• It only runs when a condition is true

• It repeats without stopping

• It runs once and stops automatically

Multiple Choice

What best describes a definite (repeat) loop?

• A loop that runs only when the user clicks a button

• A loop that runs forever without stopping

• A loop that repeats an unknown number of times

• A loop that repeats a specific number of times before stopping

Multiple Choice

What are the two types of definite (repeat) loops?

• Simple loops and nested loops

• Event-controlled loops and error loops

• Condition-controlled loops and count-controlled loops

• Forever loops and iteration loops

Multiple Choice

What is the main difference between a definite (repeat) loop and an indefinite (forever) loop?

• Definite loops stop after one cycle; indefinite loops never start

• Definite loops repeat a set number of times; indefinite loops repeat endlessly

• Definite loops stop after one cycle; indefinite loops never start

• Definite loops are faster than indefinite loops

Testing programs

Practise

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