Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 941 · 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 collected 170 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
2. 2.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a louder speaker (c) a new colour screen (d) more labelled examples
3. 3.📦 Rohan collected 40 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
4. 4.🧪 What is accuracy? (a) correct ÷ total × 100 (b) total − correct (c) correct + total (d) total × 2
5. 5.📋 Planning an AI project: which comes first — gather many examples or calculate percent right? (a) gather many examples (b) calculate percent right
6. 6.🧪 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
7. 7.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 8 right and Model B got 5 right. How many percentage points more accurate is Model A?
8. 8.🎯 Nisha’s spam spotter was tested on 50 new messages and got 50 right. What is its accuracy in percent?
9. 9.⚖️ Two recycling sorter models were tested on the same 20 waste photos. Model A got 20 right and Model B got 18 right. How many percentage points more accurate is Model A?
10. 10.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 19 right and Model B got 15 right. How many percentage points more accurate is Model A?
11. 11.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 45 right and Model B got 43 right. How many percentage points more accurate is Model A?
12. 12.🎯 Vihaan’s fruit sorter was tested on 20 new fruit photos and got 16 right. What is its accuracy in percent?
13. 13.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 25 right and Model B got 18 right. How many percentage points more accurate is Model A?
14. 14.📋 Planning an AI project: which comes first — split train and test or gather many examples? (a) split train and test (b) gather many examples
15. 15.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 15 right and Model B got 12 right. How many percentage points more accurate is Model A?
16. 16.❌ Ananya’s bird-song app was tested on 24 new bird songs and got 17 right. How many did it get wrong?
17. 17.📋 Planning an AI project: which comes first — split train and test or choose what to sort? (a) split train and test (b) choose what to sort
18. 18.🎯 Ananya’s recycling sorter is 60% accurate. If it is tested on 100 new waste photos, how many should it get right?
19. 19.🧪 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
20. 20.❌ Vihaan’s bird-song app was tested on 36 new bird songs and got 27 right. How many did it get wrong?
21. 21.🎯 Aarav’s recycling sorter was tested on 4 new waste photos and got 2 right. What is its accuracy in percent?
22. 22.📋 Planning an AI project: which comes first — calculate percent right or correct bad labels? (a) calculate percent right (b) correct bad labels
23. 23.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 24 right and Model B got 18 right. How many percentage points more accurate is Model A?
24. 24.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 49 right and Model B got 37 right. How many percentage points more accurate is Model A?
25. 25.📦 Diya collected 50 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
26. 26.📋 Planning an AI project: which comes first — train the model or set aside test photos? (a) train the model (b) set aside test photos
27. 27.❌ Saanvi’s fruit sorter was tested on 43 new fruit photos and got 39 right. How many did it get wrong?
28. 28.🎯 Aarav’s fruit sorter is 50% accurate. If it is tested on 100 new fruit photos, how many should it get right?
29. 29.📋 Planning an AI project: which comes first — test on new photos or correct bad labels? (a) test on new photos (b) correct bad labels
30. 30.🎯 Tara’s leaf identifier was tested on 10 new leaf photos and got 9 right. What is its accuracy in percent?
31. 31.📋 Planning an AI project: which comes first — label each example or let it learn patterns? (a) label each example (b) let it learn patterns
32. 32.📋 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
33. 33.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
34. 34.📋 Planning an AI project: which comes first — improve data, retest or train the model? (a) improve data, retest (b) train the model
35. 35.🎯 Saanvi’s fruit sorter is 70% accurate. If it is tested on 80 new fruit photos, how many should it get right?
36. 36.📦 Saanvi collected 60 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
37. 37.📋 Planning an AI project: which comes first — test on new photos or train the model? (a) test on new photos (b) train the model
38. 38.📋 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
39. 39.📋 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
40. 40.❌ Rohan’s bird-song app was tested on 44 new bird songs and got 37 right. How many did it get wrong?

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