Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 785 · 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.❌ Arjun’s fruit sorter was tested on 39 new fruit photos and got 30 right. How many did it get wrong?
2. 2.📋 Planning an AI project: which comes first — try unseen examples or choose what to sort? (a) try unseen examples (b) choose what to sort
3. 3.❌ Meera’s fruit sorter was tested on 48 new fruit photos and got 39 right. How many did it get wrong?
4. 4.❌ Ishaan’s leaf identifier was tested on 31 new leaf photos and got 22 right. How many did it get wrong?
5. 5.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) more labelled examples (d) fewer examples
6. 6.❌ Kabir’s bird-song app was tested on 30 new bird songs and got 22 right. How many did it get wrong?
7. 7.📋 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
8. 8.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
9. 9.📦 Kabir collected 140 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
10. 10.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to save paper (c) to make it bigger (d) to see if it learned
11. 11.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
12. 12.📋 Planning an AI project: which comes first — calculate percent right or test on new photos? (a) calculate percent right (b) test on new photos
13. 13.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 23 right and Model B got 20 right. How many percentage points more accurate is Model A?
14. 14.🎯 Ishaan’s recycling sorter is 50% accurate. If it is tested on 80 new waste photos, how many should it get right?
15. 15.📦 Rohan collected 90 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
16. 16.📋 Planning an AI project: which comes first — let it learn patterns or choose what to sort? (a) let it learn patterns (b) choose what to sort
17. 17.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 19 right and Model B got 18 right. How many percentage points more accurate is Model A?
18. 18.🎯 Aarav’s bird-song app was tested on 5 new bird songs and got 4 right. What is its accuracy in percent?
19. 19.📋 Planning an AI project: which comes first — tag each photo by type or test on new photos? (a) tag each photo by type (b) test on new photos
20. 20.🎯 Rohan’s recycling sorter was tested on 25 new waste photos and got 18 right. What is its accuracy in percent?
21. 21.📦 Ananya collected 100 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
22. 22.🎯 Kabir’s bird-song app was tested on 25 new bird songs and got 21 right. What is its accuracy in percent?
23. 23.📋 Planning an AI project: which comes first — label each example or gather many examples? (a) label each example (b) gather many examples
24. 24.📋 Planning an AI project: which comes first — work out the accuracy or try unseen examples? (a) work out the accuracy (b) try unseen examples
25. 25.📦 Kabir collected 160 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
26. 26.🧪 What is accuracy? (a) correct + total (b) correct ÷ total × 100 (c) total − correct (d) total × 2
27. 27.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 20 right and Model B got 11 right. How many percentage points more accurate is Model A?
28. 28.🎯 Saanvi’s recycling sorter was tested on 25 new waste photos and got 24 right. What is its accuracy in percent?
29. 29.🎯 Diya’s handwriting reader is 50% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
30. 30.❌ Ishaan’s handwriting reader was tested on 21 new handwritten letters and got 15 right. How many did it get wrong?
31. 31.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
32. 32.📋 Planning an AI project: which comes first — recheck every label or collect fruit photos? (a) recheck every label (b) collect fruit photos
33. 33.📋 Planning an AI project: which comes first — let it learn patterns or try unseen examples? (a) let it learn patterns (b) try unseen examples
34. 34.🎯 Ananya’s recycling sorter is 50% accurate. If it is tested on 40 new waste photos, how many should it get right?
35. 35.🎯 Meera’s fruit sorter was tested on 4 new fruit photos and got 2 right. What is its accuracy in percent?
36. 36.🎯 Arjun’s spam spotter was tested on 25 new messages and got 16 right. What is its accuracy in percent?
37. 37.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 41 right and Model B got 39 right. How many percentage points more accurate is Model A?
38. 38.🧪 You can plan a simple AI project with… (a) only a big robot (b) nothing at all (c) paper and examples (d) a secret password
39. 39.📋 Planning an AI project: which comes first — train the model or label each example? (a) train the model (b) label each example
40. 40.⚖️ Two recycling sorter models were tested on the same 50 waste photos. Model A got 38 right and Model B got 37 right. How many percentage points more accurate is Model A?

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