Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 845 · 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.🧪 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
2. 2.📋 Planning an AI project: which comes first — train the model or fix it and test again? (a) train the model (b) fix it and test again
3. 3.📋 Planning an AI project: which comes first — gather many examples or recheck every label? (a) gather many examples (b) recheck every label
4. 4.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 50 right and Model B got 48 right. How many percentage points more accurate is Model A?
5. 5.🧪 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
6. 6.🎯 Nisha’s bird-song app was tested on 25 new bird songs and got 25 right. What is its accuracy in percent?
7. 7.📋 Planning an AI project: which comes first — test on new photos or pick a question to solve? (a) test on new photos (b) pick a question to solve
8. 8.📋 Planning an AI project: which comes first — fix it and test again or correct bad labels? (a) fix it and test again (b) correct bad labels
9. 9.🧪 What is accuracy? (a) correct + total (b) total − correct (c) correct ÷ total × 100 (d) total × 2
10. 10.📋 Planning an AI project: which comes first — calculate percent right or set aside test photos? (a) calculate percent right (b) set aside test photos
11. 11.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 39 right and Model B got 37 right. How many percentage points more accurate is Model A?
12. 12.📋 Planning an AI project: which comes first — pick a question to solve or correct bad labels? (a) pick a question to solve (b) correct bad labels
13. 13.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 20 right and Model B got 17 right. How many percentage points more accurate is Model A?
14. 14.🎯 Nisha’s spam spotter is 60% accurate. If it is tested on 50 new messages, how many should it get right?
15. 15.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 20 right and Model B got 14 right. How many percentage points more accurate is Model A?
16. 16.📋 Planning an AI project: which comes first — split train and test or calculate percent right? (a) split train and test (b) calculate percent right
17. 17.📦 Nisha collected 130 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
18. 18.❌ Diya’s bird-song app was tested on 40 new bird songs and got 35 right. How many did it get wrong?
19. 19.📋 Planning an AI project: which comes first — work out the accuracy or label each example? (a) work out the accuracy (b) label each example
20. 20.❌ Vihaan’s spam spotter was tested on 44 new messages and got 43 right. How many did it get wrong?
21. 21.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
22. 22.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 19 right and Model B got 13 right. How many percentage points more accurate is Model A?
23. 23.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 20 right and Model B got 17 right. How many percentage points more accurate is Model A?
24. 24.📋 Planning an AI project: which comes first — let it learn patterns or split train and test? (a) let it learn patterns (b) split train and test
25. 25.🎯 Tara’s recycling sorter is 60% accurate. If it is tested on 70 new waste photos, how many should it get right?
26. 26.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
27. 27.📋 Planning an AI project: which comes first — choose what to sort or split train and test? (a) choose what to sort (b) split train and test
28. 28.📋 Planning an AI project: which comes first — collect fruit photos or work out the accuracy? (a) collect fruit photos (b) work out the accuracy
29. 29.❌ Rohan’s spam spotter was tested on 19 new messages and got 16 right. How many did it get wrong?
30. 30.📋 Planning an AI project: which comes first — improve data, retest or try unseen examples? (a) improve data, retest (b) try unseen examples
31. 31.🎯 Rohan’s handwriting reader is 70% accurate. If it is tested on 10 new handwritten letters, how many should it get right?
32. 32.📦 Arjun collected 120 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
33. 33.📋 Planning an AI project: which comes first — work out the accuracy or correct bad labels? (a) work out the accuracy (b) correct bad labels
34. 34.📋 Planning an AI project: which comes first — set aside test photos or correct bad labels? (a) set aside test photos (b) correct bad labels
35. 35.📦 Meera 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.🎯 Aarav’s handwriting reader was tested on 20 new handwritten letters and got 11 right. What is its accuracy in percent?
37. 37.🧪 You can plan a simple AI project with… (a) nothing at all (b) a secret password (c) paper and examples (d) only a big robot
38. 38.📋 Planning an AI project: which comes first — calculate percent right or test on new photos? (a) calculate percent right (b) test on new photos
39. 39.🎯 Rohan’s fruit sorter was tested on 5 new fruit photos and got 5 right. What is its accuracy in percent?
40. 40.📦 Arjun collected 200 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?

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