Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 772 · 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.❌ Nisha’s spam spotter was tested on 16 new messages and got 13 right. How many did it get wrong?
2. 2.🎯 Diya’s bird-song app was tested on 20 new bird songs and got 18 right. What is its accuracy in percent?
3. 3.📋 Planning an AI project: which comes first — train the model or try unseen examples? (a) train the model (b) try unseen examples
4. 4.📋 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
5. 5.🧪 What is accuracy? (a) correct + total (b) total − correct (c) correct ÷ total × 100 (d) total × 2
6. 6.🎯 Ananya’s recycling sorter is 60% accurate. If it is tested on 100 new waste photos, how many should it get right?
7. 7.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) fewer examples (c) a louder speaker (d) a new colour screen
8. 8.📦 Ananya collected 40 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
9. 9.📦 Arjun collected 200 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
10. 10.📋 Planning an AI project: which comes first — recheck every label or split train and test? (a) recheck every label (b) split train and test
11. 11.📋 Planning an AI project: which comes first — test on new photos or correct bad labels? (a) test on new photos (b) correct bad labels
12. 12.🎯 Vihaan’s bird-song app was tested on 4 new bird songs and got 3 right. What is its accuracy in percent?
13. 13.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
14. 14.🎯 Tara’s fruit sorter was tested on 4 new fruit photos and got 4 right. What is its accuracy in percent?
15. 15.📋 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
16. 16.📋 Planning an AI project: which comes first — collect fruit photos or tag each photo by type? (a) collect fruit photos (b) tag each photo by type
17. 17.📦 Arjun collected 70 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
18. 18.🎯 Ishaan’s leaf identifier was tested on 5 new leaf photos and got 5 right. What is its accuracy in percent?
19. 19.📋 Planning an AI project: which comes first — calculate percent right or pick a question to solve? (a) calculate percent right (b) pick a question to solve
20. 20.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
21. 21.🎯 Diya’s handwriting reader is 50% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
22. 22.📋 Planning an AI project: which comes first — choose what to sort or gather many examples? (a) choose what to sort (b) gather many examples
23. 23.🧪 You can plan a simple AI project with… (a) only a big robot (b) a secret password (c) paper and examples (d) nothing at all
24. 24.❌ Meera’s recycling sorter was tested on 29 new waste photos and got 24 right. How many did it get wrong?
25. 25.🎯 Meera’s bird-song app is 70% accurate. If it is tested on 10 new bird songs, how many should it get right?
26. 26.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
27. 27.🎯 Rohan’s handwriting reader is 70% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
28. 28.📋 Planning an AI project: which comes first — calculate percent right or let it learn patterns? (a) calculate percent right (b) let it learn patterns
29. 29.📋 Planning an AI project: which comes first — collect fruit photos or test on new photos? (a) collect fruit photos (b) test on new photos
30. 30.📋 Planning an AI project: which comes first — fix it and test again or calculate percent right? (a) fix it and test again (b) calculate percent right
31. 31.❌ Tara’s handwriting reader was tested on 40 new handwritten letters and got 34 right. How many did it get wrong?
32. 32.🧪 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
33. 33.📦 Nisha collected 160 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
34. 34.📦 Kabir collected 50 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
35. 35.📋 Planning an AI project: which comes first — label each example or split train and test? (a) label each example (b) split train and test
36. 36.📋 Planning an AI project: which comes first — fix it and test again or test on new photos? (a) fix it and test again (b) test on new photos
37. 37.🎯 Vihaan’s bird-song app is 60% accurate. If it is tested on 10 new bird songs, how many should it get right?
38. 38.❌ Ishaan’s handwriting reader was tested on 19 new handwritten letters and got 18 right. How many did it get wrong?
39. 39.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
40. 40.📦 Rohan collected 60 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?

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