Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 781 · 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.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 23 right and Model B got 15 right. How many percentage points more accurate is Model A?
2. 2.🎯 Meera’s bird-song app is 80% accurate. If it is tested on 90 new bird songs, how many should it get right?
3. 3.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
4. 4.🎯 Nisha’s recycling sorter is 60% accurate. If it is tested on 30 new waste photos, how many should it get right?
5. 5.📋 Planning an AI project: which comes first — let it learn patterns or fix it and test again? (a) let it learn patterns (b) fix it and test again
6. 6.📋 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
7. 7.🎯 Aarav’s bird-song app was tested on 10 new bird songs and got 10 right. What is its accuracy in percent?
8. 8.📦 Arjun collected 70 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
9. 9.📋 Planning an AI project: which comes first — split train and test or work out the accuracy? (a) split train and test (b) work out the accuracy
10. 10.🎯 Diya’s bird-song app is 50% accurate. If it is tested on 90 new bird songs, how many should it get right?
11. 11.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
12. 12.📋 Planning an AI project: which comes first — correct bad labels or tag each photo by type? (a) correct bad labels (b) tag each photo by type
13. 13.🎯 Ananya’s spam spotter is 60% accurate. If it is tested on 50 new messages, how many should it get right?
14. 14.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to see if it learned (c) to save paper (d) to make it faster
15. 15.🧪 What is accuracy? (a) total − correct (b) correct + total (c) correct ÷ total × 100 (d) total × 2
16. 16.🧪 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
17. 17.📋 Planning an AI project: which comes first — try unseen examples or improve data, retest? (a) try unseen examples (b) improve data, retest
18. 18.📋 Planning an AI project: which comes first — gather many examples or split train and test? (a) gather many examples (b) split train and test
19. 19.📦 Arjun collected 120 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
20. 20.🎯 Vihaan’s recycling sorter is 50% accurate. If it is tested on 40 new waste photos, how many should it get right?
21. 21.📋 Planning an AI project: which comes first — label each example or improve data, retest? (a) label each example (b) improve data, retest
22. 22.📦 Aarav collected 180 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
23. 23.📦 Nisha collected 90 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
24. 24.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 20 right and Model B got 17 right. How many percentage points more accurate is Model A?
25. 25.📋 Planning an AI project: which comes first — calculate percent right or split train and test? (a) calculate percent right (b) split train and test
26. 26.📦 Meera collected 130 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
27. 27.📋 Planning an AI project: which comes first — gather many examples or tag each photo by type? (a) gather many examples (b) tag each photo by type
28. 28.📦 Rohan collected 100 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
29. 29.📋 Planning an AI project: which comes first — improve data, retest or let it learn patterns? (a) improve data, retest (b) let it learn patterns
30. 30.📋 Planning an AI project: which comes first — try unseen examples or train the model? (a) try unseen examples (b) train the model
31. 31.📦 Tara collected 140 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
32. 32.📦 Nisha collected 100 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
33. 33.🧪 You can plan a simple AI project with… (a) a secret password (b) only a big robot (c) paper and examples (d) nothing at all
34. 34.📋 Planning an AI project: which comes first — work out the accuracy or fix it and test again? (a) work out the accuracy (b) fix it and test again
35. 35.📋 Planning an AI project: which comes first — test on new photos or split train and test? (a) test on new photos (b) split train and test
36. 36.📋 Planning an AI project: which comes first — pick a question to solve or work out the accuracy? (a) pick a question to solve (b) work out the accuracy
37. 37.📦 Ananya collected 170 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
38. 38.📦 Arjun collected 150 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
39. 39.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 32 right and Model B got 26 right. How many percentage points more accurate is Model A?
40. 40.🎯 Saanvi’s recycling sorter is 50% accurate. If it is tested on 70 new waste photos, how many should it get right?

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