Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 451 · 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.❌ Ishaan’s bird-song app was tested on 25 new bird songs and got 18 right. How many did it get wrong?
2. 2.📋 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
3. 3.📋 Planning an AI project: which comes first — test on new photos or label each example? (a) test on new photos (b) label each example
4. 4.📦 Ishaan collected 120 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
5. 5.🎯 Ananya’s recycling sorter was tested on 10 new waste photos and got 8 right. What is its accuracy in percent?
6. 6.❌ Rohan’s leaf identifier was tested on 45 new leaf photos and got 40 right. How many did it get wrong?
7. 7.🎯 Ishaan’s recycling sorter is 80% accurate. If it is tested on 10 new waste photos, how many should it get right?
8. 8.❌ Vihaan’s leaf identifier was tested on 22 new leaf photos and got 16 right. How many did it get wrong?
9. 9.🧪 You can plan a simple AI project with… (a) a secret password (b) paper and examples (c) only a big robot (d) nothing at all
10. 10.🎯 Nisha’s fruit sorter is 90% accurate. If it is tested on 40 new fruit photos, how many should it get right?
11. 11.🎯 Saanvi’s bird-song app is 70% accurate. If it is tested on 10 new bird songs, how many should it get right?
12. 12.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to save paper (c) to see if it learned (d) to make it bigger
13. 13.📋 Planning an AI project: which comes first — tag each photo by type or set aside test photos? (a) tag each photo by type (b) set aside test photos
14. 14.🎯 Arjun’s bird-song app was tested on 10 new bird songs and got 7 right. What is its accuracy in percent?
15. 15.🧪 What is accuracy? (a) correct ÷ total × 100 (b) total − correct (c) total × 2 (d) correct + total
16. 16.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) more labelled examples (c) a new colour screen (d) a louder speaker
17. 17.🎯 Arjun’s handwriting reader is 50% accurate. If it is tested on 20 new handwritten letters, how many should it get right?
18. 18.📋 Planning an AI project: which comes first — test on new photos or recheck every label? (a) test on new photos (b) recheck every label
19. 19.📋 Planning an AI project: which comes first — tag each photo by type or split train and test? (a) tag each photo by type (b) split train and test
20. 20.📦 Arjun collected 160 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
21. 21.📦 Kabir collected 100 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
22. 22.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 46 right and Model B got 43 right. How many percentage points more accurate is Model A?
23. 23.❌ Ananya’s handwriting reader was tested on 15 new handwritten letters and got 12 right. How many did it get wrong?
24. 24.📦 Arjun collected 120 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
25. 25.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
26. 26.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
27. 27.🎯 Aarav’s bird-song app is 60% accurate. If it is tested on 30 new bird songs, how many should it get right?
28. 28.🎯 Saanvi’s leaf identifier was tested on 50 new leaf photos and got 34 right. What is its accuracy in percent?
29. 29.📦 Ishaan collected 130 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
30. 30.📋 Planning an AI project: which comes first — improve data, retest or pick a question to solve? (a) improve data, retest (b) pick a question to solve
31. 31.📋 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
32. 32.❌ Ishaan’s recycling sorter was tested on 30 new waste photos and got 21 right. How many did it get wrong?
33. 33.📋 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
34. 34.🎯 Meera’s handwriting reader is 90% accurate. If it is tested on 50 new handwritten letters, how many should it get right?
35. 35.🎯 Arjun’s fruit sorter was tested on 50 new fruit photos and got 32 right. What is its accuracy in percent?
36. 36.📋 Planning an AI project: which comes first — fix it and test again or work out the accuracy? (a) fix it and test again (b) work out the accuracy
37. 37.❌ Saanvi’s handwriting reader was tested on 36 new handwritten letters and got 32 right. How many did it get wrong?
38. 38.🎯 Nisha’s bird-song app is 90% accurate. If it is tested on 20 new bird songs, how many should it get right?
39. 39.📋 Planning an AI project: which comes first — split train and test or test on new photos? (a) split train and test (b) test on new photos
40. 40.⚖️ Two recycling sorter models were tested on the same 50 waste photos. Model A got 50 right and Model B got 35 right. How many percentage points more accurate is Model A?

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