Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 446 · 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.❌ Aarav’s spam spotter was tested on 41 new messages and got 36 right. How many did it get wrong?
2. 2.🎯 Ananya’s handwriting reader is 50% accurate. If it is tested on 10 new handwritten letters, how many should it get right?
3. 3.📋 Planning an AI project: which comes first — pick a question to solve or collect fruit photos? (a) pick a question to solve (b) collect fruit photos
4. 4.🎯 Meera’s leaf identifier was tested on 5 new leaf photos and got 3 right. What is its accuracy in percent?
5. 5.🎯 Meera’s bird-song app is 90% accurate. If it is tested on 10 new bird songs, how many should it get right?
6. 6.❌ Rohan’s leaf identifier was tested on 45 new leaf photos and got 42 right. How many did it get wrong?
7. 7.🎯 Rohan’s fruit sorter was tested on 5 new fruit photos and got 5 right. What is its accuracy in percent?
8. 8.📋 Planning an AI project: which comes first — label each example or collect fruit photos? (a) label each example (b) collect fruit photos
9. 9.🎯 Ishaan’s bird-song app is 60% accurate. If it is tested on 100 new bird songs, how many should it get right?
10. 10.🧪 What is accuracy? (a) total × 2 (b) total − correct (c) correct + total (d) correct ÷ total × 100
11. 11.🎯 Arjun’s recycling sorter was tested on 25 new waste photos and got 16 right. What is its accuracy in percent?
12. 12.🎯 Kabir’s fruit sorter is 50% accurate. If it is tested on 60 new fruit photos, how many should it get right?
13. 13.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 9 right and Model B got 8 right. How many percentage points more accurate is Model A?
14. 14.📋 Planning an AI project: which comes first — choose what to sort or improve data, retest? (a) choose what to sort (b) improve data, retest
15. 15.🎯 Ananya’s spam spotter was tested on 10 new messages and got 8 right. What is its accuracy in percent?
16. 16.📋 Planning an AI project: which comes first — test on new photos or pick a question to solve? (a) test on new photos (b) pick a question to solve
17. 17.📋 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
18. 18.🧪 You can plan a simple AI project with… (a) nothing at all (b) only a big robot (c) paper and examples (d) a secret password
19. 19.📋 Planning an AI project: which comes first — calculate percent right or label each example? (a) calculate percent right (b) label each example
20. 20.📋 Planning an AI project: which comes first — gather many examples or try unseen examples? (a) gather many examples (b) try unseen examples
21. 21.📋 Planning an AI project: which comes first — improve data, retest or let it learn patterns? (a) improve data, retest (b) let it learn patterns
22. 22.🎯 Tara’s spam spotter is 50% accurate. If it is tested on 80 new messages, how many should it get right?
23. 23.📋 Planning an AI project: which comes first — try unseen examples or set aside test photos? (a) try unseen examples (b) set aside test photos
24. 24.📦 Nisha collected 80 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
25. 25.📋 Planning an AI project: which comes first — gather many examples or improve data, retest? (a) gather many examples (b) improve data, retest
26. 26.🎯 Aarav’s handwriting reader was tested on 50 new handwritten letters and got 29 right. What is its accuracy in percent?
27. 27.📋 Planning an AI project: which comes first — set aside test photos or work out the accuracy? (a) set aside test photos (b) work out the accuracy
28. 28.📋 Planning an AI project: which comes first — work out the accuracy or label each example? (a) work out the accuracy (b) label each example
29. 29.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
30. 30.🎯 Kabir’s spam spotter was tested on 10 new messages and got 6 right. What is its accuracy in percent?
31. 31.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) fewer examples (c) a louder speaker (d) more labelled examples
32. 32.🎯 Aarav’s fruit sorter was tested on 20 new fruit photos and got 13 right. What is its accuracy in percent?
33. 33.🎯 Ananya’s spam spotter was tested on 50 new messages and got 29 right. What is its accuracy in percent?
34. 34.🎯 Vihaan’s recycling sorter is 70% accurate. If it is tested on 60 new waste photos, how many should it get right?
35. 35.📋 Planning an AI project: which comes first — collect fruit photos or test on new photos? (a) collect fruit photos (b) test on new photos
36. 36.❌ Rohan’s bird-song app was tested on 29 new bird songs and got 22 right. How many did it get wrong?
37. 37.📋 Planning an AI project: which comes first — train the model or split train and test? (a) train the model (b) split train and test
38. 38.❌ Kabir’s fruit sorter was tested on 44 new fruit photos and got 38 right. How many did it get wrong?
39. 39.📋 Planning an AI project: which comes first — collect fruit photos or correct bad labels? (a) collect fruit photos (b) correct bad labels
40. 40.📦 Aarav collected 90 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?

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