Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 790 · 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.🧪 What is accuracy? (a) correct + total (b) total − correct (c) total × 2 (d) correct ÷ total × 100
2. 2.📦 Aarav collected 120 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
3. 3.📋 Planning an AI project: which comes first — choose what to sort or gather many examples? (a) choose what to sort (b) gather many examples
4. 4.📋 Planning an AI project: which comes first — gather many examples or split train and test? (a) gather many examples (b) split train and test
5. 5.📋 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
6. 6.📋 Planning an AI project: which comes first — calculate percent right or try unseen examples? (a) calculate percent right (b) try unseen examples
7. 7.📋 Planning an AI project: which comes first — tag each photo by type or recheck every label? (a) tag each photo by type (b) recheck every label
8. 8.📋 Planning an AI project: which comes first — collect fruit photos or let it learn patterns? (a) collect fruit photos (b) let it learn patterns
9. 9.❌ Ishaan’s spam spotter was tested on 24 new messages and got 15 right. How many did it get wrong?
10. 10.❌ Tara’s spam spotter was tested on 39 new messages and got 30 right. How many did it get wrong?
11. 11.📋 Planning an AI project: which comes first — gather many examples or tag each photo by type? (a) gather many examples (b) tag each photo by type
12. 12.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to make it bigger (c) to see if it learned (d) to save paper
13. 13.🧪 You can plan a simple AI project with… (a) a secret password (b) nothing at all (c) paper and examples (d) only a big robot
14. 14.📋 Planning an AI project: which comes first — set aside test photos or try unseen examples? (a) set aside test photos (b) try unseen examples
15. 15.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
16. 16.📋 Planning an AI project: which comes first — improve data, retest or gather many examples? (a) improve data, retest (b) gather many examples
17. 17.📦 Nisha collected 50 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
18. 18.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a new colour screen (c) more labelled examples (d) a louder speaker
19. 19.📋 Planning an AI project: which comes first — improve data, retest or train the model? (a) improve data, retest (b) train the model
20. 20.📋 Planning an AI project: which comes first — collect fruit photos or test on new photos? (a) collect fruit photos (b) test on new photos
21. 21.🎯 Arjun’s spam spotter was tested on 20 new messages and got 11 right. What is its accuracy in percent?
22. 22.❌ Ishaan’s bird-song app was tested on 47 new bird songs and got 43 right. How many did it get wrong?
23. 23.📦 Aarav collected 80 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
24. 24.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 33 right and Model B got 32 right. How many percentage points more accurate is Model A?
25. 25.🎯 Ananya’s bird-song app was tested on 50 new bird songs and got 28 right. What is its accuracy in percent?
26. 26.🎯 Ananya’s fruit sorter is 80% accurate. If it is tested on 60 new fruit photos, how many should it get right?
27. 27.📋 Planning an AI project: which comes first — calculate percent right or test on new photos? (a) calculate percent right (b) test on new photos
28. 28.📋 Planning an AI project: which comes first — pick a question to solve or test on new photos? (a) pick a question to solve (b) test on new photos
29. 29.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
30. 30.📋 Planning an AI project: which comes first — improve data, retest or test on new photos? (a) improve data, retest (b) test on new photos
31. 31.📦 Nisha collected 90 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
32. 32.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 9 right and Model B got 8 right. How many percentage points more accurate is Model A?
33. 33.🎯 Ananya’s bird-song app is 60% accurate. If it is tested on 60 new bird songs, how many should it get right?
34. 34.🎯 Nisha’s handwriting reader was tested on 4 new handwritten letters and got 4 right. What is its accuracy in percent?
35. 35.🎯 Meera’s leaf identifier is 80% accurate. If it is tested on 30 new leaf photos, how many should it get right?
36. 36.❌ Rohan’s fruit sorter was tested on 50 new fruit photos and got 43 right. How many did it get wrong?
37. 37.📋 Planning an AI project: which comes first — train the model or gather many examples? (a) train the model (b) gather many examples
38. 38.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 25 right and Model B got 17 right. How many percentage points more accurate is Model A?
39. 39.🎯 Ishaan’s bird-song app is 60% accurate. If it is tested on 80 new bird songs, how many should it get right?
40. 40.🎯 Aarav’s recycling sorter was tested on 25 new waste photos and got 17 right. What is its accuracy in percent?

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