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Year 10
AQA

Programming project: iteration II

I can develop a program and apply testing techniques to ensure that it works correctly.

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New
New
Year 10
AQA

Programming project: iteration II

I can develop a program and apply testing techniques to ensure that it works correctly.

Download all resources
Share activities with pupils

These resources will be removed by end of Summer Term 2025.

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Lesson details

Key learning points

  1. Completing an implementation ensures that all intended functionality is present.
  2. Testing checks that code behaves correctly and meets requirements.

Keywords

  • Test plan - a document that sets out the tests that will be carried out during testing

  • Test data - the input values used to check whether a program works correctly during testing and to see how it behaves in different situations

Common misconception

I finished the code and it runs, so I don’t need to test it.

Just because a program runs doesn’t mean it works correctly in all situations. Testing helps find hidden errors, especially with unusual or unexpected inputs that you might not think of.


To help you plan your year 10 computer science lesson on: Programming project: iteration II, download all teaching resources for free and adapt to suit your pupils' needs...

Introduce normal, boundary, and erroneous test data with real examples. Ask learners to predict outcomes before running tests.
Teacher tip

Equipment

Code in this lesson is made using Python. Code examples use the RPF Code Editor but any Python IDE is suitable.

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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Starter quiz

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6 Questions

Q1.
What does 'robust' mean in programming?
a program that runs quickly
a program that has no loops
a program that skips errors
Correct answer: a program that handles unexpected inputs without crashing
Q2.
What is exception handling used for?
Correct answer: to catch and manage errors so that the program doesn't crash
to make the program faster
to delete errors automatically
to skip testing
Q3.
What is decomposition in programming?
writing all the code at once
ignoring smaller tasks
Correct answer: breaking down a problem into smaller parts
testing the program
Q4.
What is a pre-condition loop?
Correct answer: a loop that checks its condition at the start
a loop that checks its condition at the end
a loop that skips the condition
a loop that runs only once
Q5.
Correctly order these tasks in program development:
1 - Plan the program.
2 - Write the code.
3 - Test the program.
4 - Debug the code.
Q6.
What ensures that a program catches errors and manages them to prevent crashes?
Correct Answer: exception handling

Exit quiz

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6 Questions

Q1.
Why is it important to test a program after completing the code?
Correct answer: to ensure that it works correctly in all situations
to make it run faster
to delete unnecessary parts
to skip debugging
Q2.
What does a test plan help you do?
write the program code
debug the program
skip unnecessary tests
Correct answer: organise the tests to be carried out
Q3.
Match the terms to their definitions:
Correct Answer:test plan,a document that outlines the tests to be carried out

a document that outlines the tests to be carried out

Correct Answer:test data,input values used during testing

input values used during testing

Correct Answer:normal test data,typical or expected inputs

typical or expected inputs

Correct Answer:boundary test data,inputs at the limits of acceptable values

inputs at the limits of acceptable values

Correct Answer:erroneous test data,invalid or unexpected inputs

invalid or unexpected inputs

Q4.
Enter a valid example of normal data for a program that accepts numbers between 1 and 3 (inclusive).
Correct Answer: 1, 2, 3
Q5.
Enter a valid example of boundary data for a program that accepts numbers between 1 and 10 (inclusive).
Correct Answer: 1, 10
Q6.
Why is it important to test a program even if it runs?
to make the program run faster
to delete unnecessary parts of the program
Correct answer: to ensure that it works correctly in all situations
to skip debugging

Additional material

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