Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 632 · 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 recycling sorter was tested on 10 new waste photos and got 7 right. What is its accuracy in percent?
2. 2.📋 Planning an AI project: which comes first — improve data, retest or label each example? (a) improve data, retest (b) label each example
3. 3.📋 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
4. 4.🎯 Diya’s handwriting reader is 70% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
5. 5.🎯 Vihaan’s leaf identifier was tested on 4 new leaf photos and got 3 right. What is its accuracy in percent?
6. 6.🎯 Saanvi’s handwriting reader is 70% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
7. 7.📋 Planning an AI project: which comes first — try unseen examples or work out the accuracy? (a) try unseen examples (b) work out the accuracy
8. 8.📋 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
9. 9.📋 Planning an AI project: which comes first — tag each photo by type or fix it and test again? (a) tag each photo by type (b) fix it and test again
10. 10.🎯 Tara’s handwriting reader was tested on 50 new handwritten letters and got 31 right. What is its accuracy in percent?
11. 11.📋 Planning an AI project: which comes first — set aside test photos or gather many examples? (a) set aside test photos (b) gather many examples
12. 12.📦 Meera collected 130 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
13. 13.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 9 right and Model B got 5 right. How many percentage points more accurate is Model A?
14. 14.🧪 What is accuracy? (a) correct + total (b) total − correct (c) correct ÷ total × 100 (d) total × 2
15. 15.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to see if it learned (c) to make it faster (d) to save paper
16. 16.📦 Meera collected 60 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
17. 17.🎯 Saanvi’s leaf identifier was tested on 20 new leaf photos and got 15 right. What is its accuracy in percent?
18. 18.📦 Arjun collected 100 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
19. 19.🎯 Rohan’s fruit sorter was tested on 5 new fruit photos and got 5 right. What is its accuracy in percent?
20. 20.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 10 right. How many percentage points more accurate is Model A?
21. 21.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a louder speaker (c) more labelled examples (d) a new colour screen
22. 22.📦 Diya collected 40 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
23. 23.📋 Planning an AI project: which comes first — pick a question to solve or improve data, retest? (a) pick a question to solve (b) improve data, retest
24. 24.📋 Planning an AI project: which comes first — test on new photos or recheck every label? (a) test on new photos (b) recheck every label
25. 25.🎯 Kabir’s recycling sorter was tested on 50 new waste photos and got 49 right. What is its accuracy in percent?
26. 26.📦 Ishaan collected 130 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
27. 27.📋 Planning an AI project: which comes first — label each example or choose what to sort? (a) label each example (b) choose what to sort
28. 28.🎯 Ishaan’s bird-song app was tested on 5 new bird songs and got 3 right. What is its accuracy in percent?
29. 29.🎯 Ishaan’s leaf identifier was tested on 4 new leaf photos and got 4 right. What is its accuracy in percent?
30. 30.📋 Planning an AI project: which comes first — improve data, retest or pick a question to solve? (a) improve data, retest (b) pick a question to solve
31. 31.🎯 Meera’s leaf identifier is 60% accurate. If it is tested on 20 new leaf photos, how many should it get right?
32. 32.📦 Rohan collected 50 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
33. 33.🎯 Meera’s recycling sorter was tested on 5 new waste photos and got 4 right. What is its accuracy in percent?
34. 34.📋 Planning an AI project: which comes first — correct bad labels or pick a question to solve? (a) correct bad labels (b) pick a question to solve
35. 35.📦 Rohan collected 180 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
36. 36.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 19 right and Model B got 16 right. How many percentage points more accurate is Model A?
37. 37.🎯 Tara’s fruit sorter is 50% accurate. If it is tested on 60 new fruit photos, how many should it get right?
38. 38.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 5 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — gather many examples or test on new photos? (a) gather many examples (b) test on new photos
40. 40.🎯 Nisha’s handwriting reader was tested on 25 new handwritten letters and got 14 right. What is its accuracy in percent?

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