HOW DOES A MACHINE SEE?
ULTRON.INOV SCHOOLS

Activity · Students · 30–45 minutes

LEARNING GOAL
Explain why varied examples and careful testing matter in computer vision.

MATERIALS
- Paper and drawing materials
- A selection of everyday object pictures
- Optional access to a classroom image-classification tool

ACTIVITY
1. Choose two object categories. Draw or collect several different examples of each.

2. Write a rule that separates the categories. Try the rule on a new picture.

3. Find a confusing example and explain why it challenges the rule.

4. If using a classification tool, test new examples with different angles or backgrounds and record mistakes.

REFLECT
- Which examples were easy to recognise?
- How did the background or angle affect the result?
- When should a person check a machine’s decision?

EXTENSION
Add a third category and compare how the classification challenge changes.

CLASSROOM NOTE
Use age-appropriate equipment and supervision. Follow the manufacturer’s instructions, disconnect power before changing connections, and keep liquids away from electronics.