Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 307 · 40 questions

AI tip (Accuracy = correct ÷ total × 100): Steps: 1 choose a problem → 2 collect examples → 3 label them → 4 check and correct bad labels (clean the data) → 5 split into training and test sets → 6 train → 7 test with new examples → 8 measure accuracy → 9 improve the data and retest. Accuracy = correct ÷ total × 100. Wrong = total − correct. Expected right = accuracy ÷ 100 × total. Keep some examples apart for testing (for example one fifth); the rest are for training.

1. 1.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to see if it learned (c) to make it bigger (d) to make it faster
2. 2.📋 Planning an AI project: which comes first — try unseen examples or collect fruit photos? (a) try unseen examples (b) collect fruit photos
3. 3.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
4. 4.🎯 Diya’s leaf identifier was tested on 50 new leaf photos and got 28 right. What is its accuracy in percent?
5. 5.📋 Planning an AI project: which comes first — recheck every label or train the model? (a) recheck every label (b) train the model
6. 6.🧪 You can plan a simple AI project with… (a) only a big robot (b) a secret password (c) paper and examples (d) nothing at all
7. 7.📋 Planning an AI project: which comes first — fix it and test again or tag each photo by type? (a) fix it and test again (b) tag each photo by type
8. 8.📋 Planning an AI project: which comes first — split train and test or calculate percent right? (a) split train and test (b) calculate percent right
9. 9.❌ Diya’s bird-song app was tested on 28 new bird songs and got 26 right. How many did it get wrong?
10. 10.⚖️ Two leaf identifier models were tested on the same 10 leaf photos. Model A got 7 right and Model B got 6 right. How many percentage points more accurate is Model A?
11. 11.📋 Planning an AI project: which comes first — collect fruit photos or test on new photos? (a) collect fruit photos (b) test on new photos
12. 12.🎯 Arjun’s fruit sorter is 60% accurate. If it is tested on 40 new fruit photos, how many should it get right?
13. 13.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 7 right and Model B got 5 right. How many percentage points more accurate is Model A?
14. 14.❌ Aarav’s spam spotter was tested on 37 new messages and got 30 right. How many did it get wrong?
15. 15.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 47 right and Model B got 25 right. How many percentage points more accurate is Model A?
16. 16.🎯 Ishaan’s recycling sorter was tested on 25 new waste photos and got 21 right. What is its accuracy in percent?
17. 17.📋 Planning an AI project: which comes first — set aside test photos or try unseen examples? (a) set aside test photos (b) try unseen examples
18. 18.🎯 Arjun’s leaf identifier is 90% accurate. If it is tested on 90 new leaf photos, how many should it get right?
19. 19.🎯 Meera’s recycling sorter is 50% accurate. If it is tested on 70 new waste photos, how many should it get right?
20. 20.📦 Ananya collected 70 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
21. 21.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 10 right and Model B got 5 right. How many percentage points more accurate is Model A?
22. 22.🎯 Arjun’s leaf identifier was tested on 50 new leaf photos and got 50 right. What is its accuracy in percent?
23. 23.📦 Ananya collected 180 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
24. 24.📋 Planning an AI project: which comes first — calculate percent right or let it learn patterns? (a) calculate percent right (b) let it learn patterns
25. 25.🎯 Aarav’s spam spotter was tested on 25 new messages and got 23 right. What is its accuracy in percent?
26. 26.📋 Planning an AI project: which comes first — recheck every label or split train and test? (a) recheck every label (b) split train and test
27. 27.📦 Nisha collected 130 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
28. 28.📋 Planning an AI project: which comes first — pick a question to solve or try unseen examples? (a) pick a question to solve (b) try unseen examples
29. 29.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a louder speaker (c) a new colour screen (d) more labelled examples
30. 30.❌ Diya’s spam spotter was tested on 45 new messages and got 40 right. How many did it get wrong?
31. 31.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 16 right. How many percentage points more accurate is Model A?
32. 32.❌ Rohan’s spam spotter was tested on 32 new messages and got 30 right. How many did it get wrong?
33. 33.🎯 Kabir’s leaf identifier was tested on 20 new leaf photos and got 17 right. What is its accuracy in percent?
34. 34.🎯 Vihaan’s handwriting reader is 80% accurate. If it is tested on 30 new handwritten letters, how many should it get right?
35. 35.📋 Planning an AI project: which comes first — collect fruit photos or choose what to sort? (a) collect fruit photos (b) choose what to sort
36. 36.🎯 Saanvi’s bird-song app is 70% accurate. If it is tested on 60 new bird songs, how many should it get right?
37. 37.🧪 What is accuracy? (a) total − correct (b) total × 2 (c) correct ÷ total × 100 (d) correct + total
38. 38.📋 Planning an AI project: which comes first — calculate percent right or collect fruit photos? (a) calculate percent right (b) collect fruit photos
39. 39.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 6 right and Model B got 5 right. How many percentage points more accurate is Model A?
40. 40.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 9 right and Model B got 5 right. How many percentage points more accurate is Model A?

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