Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 592 · 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.🎯 Aarav’s handwriting reader was tested on 5 new handwritten letters and got 4 right. What is its accuracy in percent?
2. 2.🎯 Rohan’s handwriting reader is 50% accurate. If it is tested on 100 new handwritten letters, how many should it get right?
3. 3.🎯 Diya’s bird-song app was tested on 10 new bird songs and got 9 right. What is its accuracy in percent?
4. 4.❌ Diya’s recycling sorter was tested on 15 new waste photos and got 10 right. How many did it get wrong?
5. 5.📋 Planning an AI project: which comes first — choose what to sort or calculate percent right? (a) choose what to sort (b) calculate percent right
6. 6.🎯 Ishaan’s recycling sorter was tested on 10 new waste photos and got 7 right. What is its accuracy in percent?
7. 7.📋 Planning an AI project: which comes first — split train and test or recheck every label? (a) split train and test (b) recheck every label
8. 8.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
9. 9.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it bigger (c) to see if it learned (d) to make it faster
10. 10.🎯 Arjun’s fruit sorter is 60% accurate. If it is tested on 50 new fruit photos, how many should it get right?
11. 11.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 41 right and Model B got 33 right. How many percentage points more accurate is Model A?
12. 12.📋 Planning an AI project: which comes first — gather many examples or split train and test? (a) gather many examples (b) split train and test
13. 13.🎯 Ishaan’s recycling sorter was tested on 5 new waste photos and got 3 right. What is its accuracy in percent?
14. 14.❌ Diya’s leaf identifier was tested on 32 new leaf photos and got 27 right. How many did it get wrong?
15. 15.🧪 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
16. 16.🎯 Vihaan’s fruit sorter was tested on 5 new fruit photos and got 3 right. What is its accuracy in percent?
17. 17.📦 Vihaan collected 180 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
18. 18.📋 Planning an AI project: which comes first — set aside test photos or label each example? (a) set aside test photos (b) label each example
19. 19.📋 Planning an AI project: which comes first — fix it and test again or work out the accuracy? (a) fix it and test again (b) work out the accuracy
20. 20.🧪 What is accuracy? (a) total × 2 (b) total − correct (c) correct ÷ total × 100 (d) correct + total
21. 21.📋 Planning an AI project: which comes first — split train and test or test on new photos? (a) split train and test (b) test on new photos
22. 22.🎯 Tara’s leaf identifier was tested on 50 new leaf photos and got 27 right. What is its accuracy in percent?
23. 23.❌ Vihaan’s leaf identifier was tested on 19 new leaf photos and got 13 right. How many did it get wrong?
24. 24.📋 Planning an AI project: which comes first — let it learn patterns or test on new photos? (a) let it learn patterns (b) test on new photos
25. 25.🎯 Nisha’s spam spotter is 50% accurate. If it is tested on 60 new messages, how many should it get right?
26. 26.❌ Vihaan’s bird-song app was tested on 43 new bird songs and got 35 right. How many did it get wrong?
27. 27.📋 Planning an AI project: which comes first — try unseen examples or fix it and test again? (a) try unseen examples (b) fix it and test again
28. 28.📋 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
29. 29.❌ Saanvi’s recycling sorter was tested on 21 new waste photos and got 14 right. How many did it get wrong?
30. 30.❌ Kabir’s bird-song app was tested on 23 new bird songs and got 22 right. How many did it get wrong?
31. 31.🎯 Ananya’s fruit sorter was tested on 20 new fruit photos and got 20 right. What is its accuracy in percent?
32. 32.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 50 right and Model B got 45 right. How many percentage points more accurate is Model A?
33. 33.📋 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
34. 34.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
35. 35.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
36. 36.🎯 Rohan’s leaf identifier was tested on 20 new leaf photos and got 13 right. What is its accuracy in percent?
37. 37.🎯 Aarav’s handwriting reader is 80% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
38. 38.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 15 right and Model B got 12 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — calculate percent right or train the model? (a) calculate percent right (b) train the model
40. 40.📦 Ananya collected 60 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?

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