Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 493 · 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.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it bigger (c) to make it faster (d) to see if it learned
2. 2.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 15 right and Model B got 13 right. How many percentage points more accurate is Model A?
3. 3.🎯 Arjun’s bird-song app was tested on 20 new bird songs and got 12 right. What is its accuracy in percent?
4. 4.📋 Planning an AI project: which comes first — test on new photos or recheck every label? (a) test on new photos (b) recheck every label
5. 5.❌ Vihaan’s bird-song app was tested on 18 new bird songs and got 16 right. How many did it get wrong?
6. 6.🧪 You can plan a simple AI project with… (a) only a big robot (b) paper and examples (c) nothing at all (d) a secret password
7. 7.📋 Planning an AI project: which comes first — train the model or fix it and test again? (a) train the model (b) fix it and test again
8. 8.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) a new colour screen (c) fewer examples (d) a louder speaker
9. 9.📋 Planning an AI project: which comes first — improve data, retest or let it learn patterns? (a) improve data, retest (b) let it learn patterns
10. 10.🧪 What is accuracy? (a) correct ÷ total × 100 (b) correct + total (c) total × 2 (d) total − correct
11. 11.📋 Planning an AI project: which comes first — try unseen examples or set aside test photos? (a) try unseen examples (b) set aside test photos
12. 12.🎯 Arjun’s recycling sorter is 90% accurate. If it is tested on 20 new waste photos, how many should it get right?
13. 13.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 8 right and Model B got 7 right. How many percentage points more accurate is Model A?
14. 14.📋 Planning an AI project: which comes first — collect fruit photos or fix it and test again? (a) collect fruit photos (b) fix it and test again
15. 15.📦 Diya collected 60 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
16. 16.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
17. 17.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
18. 18.🎯 Saanvi’s fruit sorter is 90% accurate. If it is tested on 10 new fruit photos, how many should it get right?
19. 19.📋 Planning an AI project: which comes first — correct bad labels or calculate percent right? (a) correct bad labels (b) calculate percent right
20. 20.🎯 Aarav’s handwriting reader was tested on 4 new handwritten letters and got 4 right. What is its accuracy in percent?
21. 21.📋 Planning an AI project: which comes first — correct bad labels or collect fruit photos? (a) correct bad labels (b) collect fruit photos
22. 22.❌ Rohan’s recycling sorter was tested on 48 new waste photos and got 44 right. How many did it get wrong?
23. 23.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 8 right and Model B got 7 right. How many percentage points more accurate is Model A?
24. 24.📋 Planning an AI project: which comes first — collect fruit photos or choose what to sort? (a) collect fruit photos (b) choose what to sort
25. 25.❌ Vihaan’s handwriting reader was tested on 31 new handwritten letters and got 24 right. How many did it get wrong?
26. 26.📋 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
27. 27.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 17 right and Model B got 13 right. How many percentage points more accurate is Model A?
28. 28.📦 Vihaan collected 80 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
29. 29.📋 Planning an AI project: which comes first — let it learn patterns or fix it and test again? (a) let it learn patterns (b) fix it and test again
30. 30.⚖️ Two recycling sorter models were tested on the same 50 waste photos. Model A got 42 right and Model B got 39 right. How many percentage points more accurate is Model A?
31. 31.🎯 Arjun’s fruit sorter was tested on 5 new fruit photos and got 5 right. What is its accuracy in percent?
32. 32.📋 Planning an AI project: which comes first — calculate percent right or tag each photo by type? (a) calculate percent right (b) tag each photo by type
33. 33.📋 Planning an AI project: which comes first — split train and test or train the model? (a) split train and test (b) train the model
34. 34.🎯 Vihaan’s fruit sorter was tested on 25 new fruit photos and got 18 right. What is its accuracy in percent?
35. 35.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
36. 36.📦 Kabir collected 50 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
37. 37.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
38. 38.📦 Saanvi collected 140 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
39. 39.📋 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
40. 40.📦 Aarav collected 120 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?

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