Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 98 · 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 make it bigger (b) to make it faster (c) to see if it learned (d) to save paper
2. 2.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 25 right and Model B got 23 right. How many percentage points more accurate is Model A?
3. 3.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) fewer examples (c) a louder speaker (d) a new colour screen
4. 4.❌ Diya’s handwriting reader was tested on 26 new handwritten letters and got 23 right. How many did it get wrong?
5. 5.📋 Planning an AI project: which comes first — try unseen examples or improve data, retest? (a) try unseen examples (b) improve data, retest
6. 6.📦 Rohan collected 80 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
7. 7.📋 Planning an AI project: which comes first — recheck every label or label each example? (a) recheck every label (b) label each example
8. 8.🎯 Meera’s leaf identifier is 90% accurate. If it is tested on 90 new leaf photos, how many should it get right?
9. 9.📋 Planning an AI project: which comes first — collect fruit photos or choose what to sort? (a) collect fruit photos (b) choose what to sort
10. 10.📋 Planning an AI project: which comes first — pick a question to solve or tag each photo by type? (a) pick a question to solve (b) tag each photo by type
11. 11.📋 Planning an AI project: which comes first — work out the accuracy or gather many examples? (a) work out the accuracy (b) gather many examples
12. 12.📦 Arjun collected 100 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
13. 13.📋 Planning an AI project: which comes first — split train and test or collect fruit photos? (a) split train and test (b) collect fruit photos
14. 14.🎯 Ananya’s handwriting reader is 60% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
15. 15.🧪 What is accuracy? (a) total × 2 (b) correct ÷ total × 100 (c) total − correct (d) correct + total
16. 16.🎯 Ananya’s handwriting reader was tested on 20 new handwritten letters and got 15 right. What is its accuracy in percent?
17. 17.🎯 Ishaan’s handwriting reader is 60% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
18. 18.🎯 Aarav’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
19. 19.❌ Aarav’s fruit sorter was tested on 22 new fruit photos and got 17 right. How many did it get wrong?
20. 20.📋 Planning an AI project: which comes first — train the model or correct bad labels? (a) train the model (b) correct bad labels
21. 21.🎯 Vihaan’s handwriting reader is 80% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
22. 22.🎯 Saanvi’s fruit sorter was tested on 25 new fruit photos and got 23 right. What is its accuracy in percent?
23. 23.📋 Planning an AI project: which comes first — choose what to sort or train the model? (a) choose what to sort (b) train the model
24. 24.🎯 Nisha’s spam spotter is 80% accurate. If it is tested on 50 new messages, how many should it get right?
25. 25.📦 Vihaan collected 130 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
26. 26.📋 Planning an AI project: which comes first — work out the accuracy or try unseen examples? (a) work out the accuracy (b) try unseen examples
27. 27.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 49 right and Model B got 47 right. How many percentage points more accurate is Model A?
28. 28.🧪 You can plan a simple AI project with… (a) paper and examples (b) a secret password (c) only a big robot (d) nothing at all
29. 29.📋 Planning an AI project: which comes first — correct bad labels or test on new photos? (a) correct bad labels (b) test on new photos
30. 30.📋 Planning an AI project: which comes first — label each example or pick a question to solve? (a) label each example (b) pick a question to solve
31. 31.📋 Planning an AI project: which comes first — gather many examples or improve data, retest? (a) gather many examples (b) improve data, retest
32. 32.❌ Vihaan’s spam spotter was tested on 47 new messages and got 46 right. How many did it get wrong?
33. 33.📋 Planning an AI project: which comes first — test on new photos or fix it and test again? (a) test on new photos (b) fix it and test again
34. 34.📋 Planning an AI project: which comes first — test on new photos or improve data, retest? (a) test on new photos (b) improve data, retest
35. 35.📋 Planning an AI project: which comes first — pick a question to solve or gather many examples? (a) pick a question to solve (b) gather many examples
36. 36.📦 Aarav collected 170 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
37. 37.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
38. 38.📦 Aarav collected 100 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
39. 39.❌ Rohan’s spam spotter was tested on 20 new messages and got 19 right. How many did it get wrong?
40. 40.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?

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