Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 769 · 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 spam spotter was tested on 4 new messages and got 2 right. What is its accuracy in percent?
2. 2.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it faster (c) to make it bigger (d) to see if it learned
3. 3.❌ Vihaan’s handwriting reader was tested on 49 new handwritten letters and got 42 right. How many did it get wrong?
4. 4.🎯 Rohan’s spam spotter was tested on 50 new messages and got 38 right. What is its accuracy in percent?
5. 5.📋 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
6. 6.🎯 Meera’s handwriting reader was tested on 50 new handwritten letters and got 27 right. What is its accuracy in percent?
7. 7.📦 Ananya collected 90 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
8. 8.❌ Aarav’s fruit sorter was tested on 20 new fruit photos and got 15 right. How many did it get wrong?
9. 9.📋 Planning an AI project: which comes first — train the model or test on new photos? (a) train the model (b) test on new photos
10. 10.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 32 right and Model B got 29 right. How many percentage points more accurate is Model A?
11. 11.❌ Ishaan’s bird-song app was tested on 33 new bird songs and got 24 right. How many did it get wrong?
12. 12.📋 Planning an AI project: which comes first — correct bad labels or fix it and test again? (a) correct bad labels (b) fix it and test again
13. 13.📋 Planning an AI project: which comes first — train the model or split train and test? (a) train the model (b) split train and test
14. 14.📋 Planning an AI project: which comes first — let it learn patterns or collect fruit photos? (a) let it learn patterns (b) collect fruit photos
15. 15.📦 Tara collected 40 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
16. 16.📦 Nisha collected 120 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
17. 17.📦 Diya collected 110 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
18. 18.📦 Ananya collected 80 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
19. 19.❌ Ananya’s fruit sorter was tested on 23 new fruit photos and got 19 right. How many did it get wrong?
20. 20.❌ Ishaan’s handwriting reader was tested on 24 new handwritten letters and got 18 right. How many did it get wrong?
21. 21.🧪 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
22. 22.🧪 What is accuracy? (a) total − correct (b) correct + total (c) correct ÷ total × 100 (d) total × 2
23. 23.🎯 Diya’s handwriting reader is 90% accurate. If it is tested on 80 new handwritten letters, how many should it get right?
24. 24.🎯 Diya’s leaf identifier was tested on 4 new leaf photos and got 3 right. What is its accuracy in percent?
25. 25.📦 Rohan collected 120 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
26. 26.🧪 You can plan a simple AI project with… (a) paper and examples (b) a secret password (c) nothing at all (d) only a big robot
27. 27.🎯 Saanvi’s recycling sorter was tested on 25 new waste photos and got 18 right. What is its accuracy in percent?
28. 28.❌ Meera’s handwriting reader was tested on 14 new handwritten letters and got 10 right. How many did it get wrong?
29. 29.🎯 Ishaan’s fruit sorter is 70% accurate. If it is tested on 20 new fruit photos, how many should it get right?
30. 30.❌ Saanvi’s spam spotter was tested on 34 new messages and got 29 right. How many did it get wrong?
31. 31.📋 Planning an AI project: which comes first — tag each photo by type or calculate percent right? (a) tag each photo by type (b) calculate percent right
32. 32.🎯 Aarav’s spam spotter was tested on 4 new messages and got 4 right. What is its accuracy in percent?
33. 33.🎯 Diya’s recycling sorter is 60% accurate. If it is tested on 10 new waste photos, how many should it get right?
34. 34.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 9 right and Model B got 8 right. How many percentage points more accurate is Model A?
35. 35.📋 Planning an AI project: which comes first — split train and test or recheck every label? (a) split train and test (b) recheck every label
36. 36.❌ Saanvi’s handwriting reader was tested on 39 new handwritten letters and got 35 right. How many did it get wrong?
37. 37.📦 Aarav collected 180 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
38. 38.📋 Planning an AI project: which comes first — test on new photos or improve data, retest? (a) test on new photos (b) improve data, retest
39. 39.📋 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
40. 40.📋 Planning an AI project: which comes first — test on new photos or fix it and test again? (a) test on new photos (b) fix it and test again

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