Images, pixels and file formats explores how digital images are made from pixels and stored in files. Students use a clear design process: understand the purpose, gather evidence, plan carefully, build or model an idea, test it and improve it responsibly.
Example
A practical example of images, pixels and file formats starts with a real user need, then uses evidence and testing to make a useful improvement.
Key terms
Pixel:
A tiny coloured part of a digital image
Resolution:
The amount of detail in an image
File format:
A way digital information is stored
Questions
1. This week’s key Technology idea is:
how digital images are made from pixels and stored in files
avoid planning a solution
ignore users and evidence
choose a design at random
2. Which term means “A tiny coloured part of a digital image”?
Pixel
Resolution
File format
Prototype
3. Which term means “The amount of detail in an image”?
Resolution
Pixel
File format
Algorithm
4. Which term means “A way digital information is stored”?
File format
Pixel
Resolution
Constraint
5. Why is planning useful in images, pixels and file formats?
It makes the purpose, user and steps clearer
It means no testing is needed
It removes all constraints
It replaces careful work
6. What should a designer do before calling a images, pixels and file formats solution finished?
Test it against its purpose and improve it
Assume the first idea is perfect
Ignore feedback
Avoid checking it
7. Which response shows responsible technology use?
Consider users, safety, privacy and environmental effects
Use a system without thinking about impacts
Hide important information from users
Copy someone else’s work without credit
8. What makes a test useful?
It checks a clear feature against a stated criterion
It changes the goal after testing
It avoids recording results
It only asks whether the designer likes it
9. Why can user feedback improve a solution?
Users can reveal needs the designer may have missed
Users always make designs worse
Feedback replaces testing
Only designers should see a solution
10. A prototype does not work as intended. What is the best next step?
Identify the cause, adjust the design and test again
Hide the result
Give up without checking
Claim it worked
11. How do the key terms help when explaining images, pixels and file formats?
They make the design explanation precise
They make evidence unnecessary
They remove the need for a user
They are only spelling words
12. Which is the strongest design decision?
One supported by a user need, evidence and testing
One based only on a guess
One that ignores constraints
One copied without understanding
13. Why should a technology solution consider its wider effects?
It can affect people, resources, safety and the environment
Technology never affects real life
Only appearance matters
Effects cannot be predicted or discussed
14. What does how digital images are made from pixels and stored in files help a learner do?
Understand, plan, test and explain a solution
Avoid applying ideas
Ignore the system
Skip reflection
15. What makes an improvement evidence-based?
It responds to a test result or useful feedback
It changes a feature at random
It ignores the original purpose
It avoids comparing versions
16. Why might two users respond differently to the same design?
They may have different needs, contexts or abilities
All users have identical needs
User experience is irrelevant
Only the designer’s view matters
17. A new requirement appears during a project. What should a designer do?
Review the plan, constraints and likely effects
Pretend the requirement does not exist
Stop recording decisions
Use the old plan without thought
18. How can images, pixels and file formats connect to real life?
It can help people solve problems thoughtfully and responsibly
It has no use outside a quiz
It avoids all decisions
It only applies to experts
19. What should a final explanation include?
The purpose, key decisions, evidence from testing and one improvement
Only a title
No reference to the user
A claim without any evidence
20. The most important outcome of this topic is to:
use design thinking to understand how digital images are made from pixels and stored in files
memorise unrelated terms
avoid asking questions
skip testing
21. Why is reflection valuable after a design task?
It helps identify what worked, what did not and what to improve next
It makes testing unnecessary
It hides problems
It has no effect on future work
Answer key (parent copy)
1. how digital images are made from pixels and stored in files
2. Pixel
3. Resolution
4. File format
5. It makes the purpose, user and steps clearer
6. Test it against its purpose and improve it
7. Consider users, safety, privacy and environmental effects
8. It checks a clear feature against a stated criterion
9. Users can reveal needs the designer may have missed
10. Identify the cause, adjust the design and test again
11. They make the design explanation precise
12. One supported by a user need, evidence and testing
13. It can affect people, resources, safety and the environment
14. Understand, plan, test and explain a solution
15. It responds to a test result or useful feedback
16. They may have different needs, contexts or abilities
17. Review the plan, constraints and likely effects
18. It can help people solve problems thoughtfully and responsibly
19. The purpose, key decisions, evidence from testing and one improvement
20. use design thinking to understand how digital images are made from pixels and stored in files
21. It helps identify what worked, what did not and what to improve next