Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 281 · 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.📦 Diya collected 160 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
2. 2.🎯 Aarav’s recycling sorter is 90% accurate. If it is tested on 50 new waste photos, how many should it get right?
3. 3.🎯 Saanvi’s leaf identifier was tested on 20 new leaf photos and got 10 right. What is its accuracy in percent?
4. 4.❌ Diya’s spam spotter was tested on 50 new messages and got 45 right. How many did it get wrong?
5. 5.📋 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
6. 6.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) more labelled examples (d) fewer examples
7. 7.🧪 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
8. 8.🎯 Kabir’s leaf identifier is 60% accurate. If it is tested on 60 new leaf photos, how many should it get right?
9. 9.📦 Tara collected 160 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
10. 10.❌ Aarav’s bird-song app was tested on 31 new bird songs and got 28 right. How many did it get wrong?
11. 11.🎯 Arjun’s bird-song app is 60% accurate. If it is tested on 10 new bird songs, how many should it get right?
12. 12.📋 Planning an AI project: which comes first — try unseen examples or split train and test? (a) try unseen examples (b) split train and test
13. 13.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 8 right and Model B got 6 right. How many percentage points more accurate is Model A?
14. 14.🧪 What is accuracy? (a) correct ÷ total × 100 (b) total − correct (c) correct + total (d) total × 2
15. 15.❌ Diya’s handwriting reader was tested on 19 new handwritten letters and got 12 right. How many did it get wrong?
16. 16.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
17. 17.📋 Planning an AI project: which comes first — test on new photos or work out the accuracy? (a) test on new photos (b) work out the accuracy
18. 18.❌ Arjun’s bird-song app was tested on 50 new bird songs and got 49 right. How many did it get wrong?
19. 19.⚖️ 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?
20. 20.🎯 Diya’s fruit sorter is 50% accurate. If it is tested on 80 new fruit photos, how many should it get right?
21. 21.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 49 right and Model B got 47 right. How many percentage points more accurate is Model A?
22. 22.🎯 Ishaan’s bird-song app was tested on 10 new bird songs and got 6 right. What is its accuracy in percent?
23. 23.📋 Planning an AI project: which comes first — recheck every label or label each example? (a) recheck every label (b) label each example
24. 24.🧪 You can plan a simple AI project with… (a) nothing at all (b) paper and examples (c) only a big robot (d) a secret password
25. 25.📋 Planning an AI project: which comes first — set aside test photos or let it learn patterns? (a) set aside test photos (b) let it learn patterns
26. 26.📦 Vihaan collected 110 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
27. 27.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 25 right and Model B got 19 right. How many percentage points more accurate is Model A?
28. 28.📋 Planning an AI project: which comes first — choose what to sort or correct bad labels? (a) choose what to sort (b) correct bad labels
29. 29.📋 Planning an AI project: which comes first — let it learn patterns or set aside test photos? (a) let it learn patterns (b) set aside test photos
30. 30.📦 Meera collected 160 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
31. 31.🎯 Saanvi’s fruit sorter was tested on 10 new fruit photos and got 8 right. What is its accuracy in percent?
32. 32.❌ Nisha’s recycling sorter was tested on 35 new waste photos and got 26 right. How many did it get wrong?
33. 33.📋 Planning an AI project: which comes first — recheck every label or test on new photos? (a) recheck every label (b) test on new photos
34. 34.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
35. 35.📋 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
36. 36.📦 Tara collected 160 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
37. 37.🎯 Aarav’s spam spotter is 90% accurate. If it is tested on 50 new messages, how many should it get right?
38. 38.🎯 Arjun’s bird-song app is 60% accurate. If it is tested on 100 new bird songs, how many should it get right?
39. 39.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 22 right and Model B got 15 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 6 right and Model B got 5 right. How many percentage points more accurate is Model A?

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