Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 126 · 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.🎯 Kabir’s leaf identifier was tested on 20 new leaf photos and got 12 right. What is its accuracy in percent?
2. 2.🎯 Arjun’s leaf identifier is 90% accurate. If it is tested on 80 new leaf photos, how many should it get right?
3. 3.📦 Rohan collected 180 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
4. 4.🧪 Why must you test a model on examples it has NOT seen? (a) to see if it learned (b) to make it faster (c) to make it bigger (d) to save paper
5. 5.📋 Planning an AI project: which comes first — calculate percent right or split train and test? (a) calculate percent right (b) split train and test
6. 6.📋 Planning an AI project: which comes first — correct bad labels or label each example? (a) correct bad labels (b) label each example
7. 7.🎯 Aarav’s leaf identifier is 80% accurate. If it is tested on 30 new leaf photos, how many should it get right?
8. 8.🎯 Tara’s leaf identifier is 70% accurate. If it is tested on 100 new leaf photos, how many should it get right?
9. 9.📦 Arjun collected 100 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
10. 10.📦 Diya collected 90 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
11. 11.🎯 Vihaan’s leaf identifier was tested on 50 new leaf photos and got 41 right. What is its accuracy in percent?
12. 12.🧪 What is accuracy? (a) correct + total (b) total × 2 (c) total − correct (d) correct ÷ total × 100
13. 13.🎯 Nisha’s fruit sorter was tested on 4 new fruit photos and got 3 right. What is its accuracy in percent?
14. 14.❌ Aarav’s recycling sorter was tested on 18 new waste photos and got 13 right. How many did it get wrong?
15. 15.📋 Planning an AI project: which comes first — fix it and test again or let it learn patterns? (a) fix it and test again (b) let it learn patterns
16. 16.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
17. 17.📋 Planning an AI project: which comes first — pick a question to solve or test on new photos? (a) pick a question to solve (b) test on new photos
18. 18.📦 Aarav collected 160 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
19. 19.⚖️ Two recycling sorter models were tested on the same 50 waste photos. Model A got 45 right and Model B got 28 right. How many percentage points more accurate is Model A?
20. 20.🎯 Rohan’s handwriting reader was tested on 50 new handwritten letters and got 33 right. What is its accuracy in percent?
21. 21.❌ Rohan’s handwriting reader was tested on 22 new handwritten letters and got 16 right. How many did it get wrong?
22. 22.📋 Planning an AI project: which comes first — fix it and test again or label each example? (a) fix it and test again (b) label each example
23. 23.🎯 Arjun’s handwriting reader is 60% accurate. If it is tested on 40 new handwritten letters, how many should it get right?
24. 24.🎯 Meera’s leaf identifier was tested on 25 new leaf photos and got 15 right. What is its accuracy in percent?
25. 25.📋 Planning an AI project: which comes first — label each example or fix it and test again? (a) label each example (b) fix it and test again
26. 26.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
27. 27.📦 Arjun collected 40 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 — calculate percent right or fix it and test again? (a) calculate percent right (b) fix it and test again
29. 29.🎯 Ishaan’s recycling sorter was tested on 10 new waste photos and got 5 right. What is its accuracy in percent?
30. 30.⚖️ 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?
31. 31.📋 Planning an AI project: which comes first — let it learn patterns or collect fruit photos? (a) let it learn patterns (b) collect fruit photos
32. 32.📋 Planning an AI project: which comes first — calculate percent right or test on new photos? (a) calculate percent right (b) test on new photos
33. 33.📦 Tara collected 50 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
34. 34.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 12 right and Model B got 11 right. How many percentage points more accurate is Model A?
35. 35.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) more labelled examples (c) a louder speaker (d) a new colour screen
36. 36.🧪 You can plan a simple AI project with… (a) a secret password (b) paper and examples (c) nothing at all (d) only a big robot
37. 37.🎯 Arjun’s bird-song app was tested on 50 new bird songs and got 39 right. What is its accuracy in percent?
38. 38.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 18 right and Model B got 17 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — gather many examples or calculate percent right? (a) gather many examples (b) calculate percent right
40. 40.🎯 Nisha’s leaf identifier was tested on 5 new leaf photos and got 4 right. What is its accuracy in percent?

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