Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 490 · 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 × 2 (c) total − correct (d) correct ÷ total × 100
2. 2.🎯 Tara’s fruit sorter was tested on 25 new fruit photos and got 15 right. What is its accuracy in percent?
3. 3.🧪 Why must you test a model on examples it has NOT seen? (a) to see if it learned (b) to make it bigger (c) to save paper (d) to make it faster
4. 4.📋 Planning an AI project: which comes first — choose what to sort or work out the accuracy? (a) choose what to sort (b) work out the accuracy
5. 5.📋 Planning an AI project: which comes first — label each example or set aside test photos? (a) label each example (b) set aside test photos
6. 6.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 25 right and Model B got 24 right. How many percentage points more accurate is Model A?
7. 7.🎯 Meera’s spam spotter was tested on 25 new messages and got 21 right. What is its accuracy in percent?
8. 8.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 25 right and Model B got 21 right. How many percentage points more accurate is Model A?
9. 9.📋 Planning an AI project: which comes first — label each example or recheck every label? (a) label each example (b) recheck every label
10. 10.🎯 Saanvi’s leaf identifier is 90% accurate. If it is tested on 80 new leaf photos, how many should it get right?
11. 11.🎯 Tara’s recycling sorter is 90% accurate. If it is tested on 20 new waste photos, how many should it get right?
12. 12.🎯 Kabir’s bird-song app is 70% accurate. If it is tested on 10 new bird songs, how many should it get right?
13. 13.📋 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
14. 14.📋 Planning an AI project: which comes first — test on new photos or fix it and test again? (a) test on new photos (b) fix it and test again
15. 15.📦 Tara collected 90 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
16. 16.🎯 Kabir’s recycling sorter is 60% accurate. If it is tested on 30 new waste photos, how many should it get right?
17. 17.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
18. 18.📋 Planning an AI project: which comes first — split train and test or choose what to sort? (a) split train and test (b) choose what to sort
19. 19.📋 Planning an AI project: which comes first — tag each photo by type or collect fruit photos? (a) tag each photo by type (b) collect fruit photos
20. 20.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 30 right and Model B got 28 right. How many percentage points more accurate is Model A?
21. 21.📦 Arjun collected 120 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
22. 22.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) fewer examples (c) more labelled examples (d) a louder speaker
23. 23.🎯 Kabir’s handwriting reader is 90% accurate. If it is tested on 10 new handwritten letters, how many should it get right?
24. 24.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 14 right and Model B got 12 right. How many percentage points more accurate is Model A?
25. 25.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 47 right and Model B got 37 right. How many percentage points more accurate is Model A?
26. 26.📋 Planning an AI project: which comes first — test on new photos or calculate percent right? (a) test on new photos (b) calculate percent right
27. 27.🧪 You can plan a simple AI project with… (a) only a big robot (b) a secret password (c) nothing at all (d) paper and examples
28. 28.🎯 Kabir’s handwriting reader is 50% accurate. If it is tested on 50 new handwritten letters, how many should it get right?
29. 29.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 25 right and Model B got 18 right. How many percentage points more accurate is Model A?
30. 30.📋 Planning an AI project: which comes first — pick a question to solve or collect fruit photos? (a) pick a question to solve (b) collect fruit photos
31. 31.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 40 right and Model B got 38 right. How many percentage points more accurate is Model A?
32. 32.📋 Planning an AI project: which comes first — collect fruit photos or test on new photos? (a) collect fruit photos (b) test on new photos
33. 33.🎯 Meera’s spam spotter was tested on 50 new messages and got 34 right. What is its accuracy in percent?
34. 34.📦 Ananya collected 160 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
35. 35.📋 Planning an AI project: which comes first — set aside test photos or try unseen examples? (a) set aside test photos (b) try unseen examples
36. 36.📋 Planning an AI project: which comes first — tag each photo by type or train the model? (a) tag each photo by type (b) train the model
37. 37.📦 Ishaan collected 90 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
38. 38.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 18 right. How many percentage points more accurate is Model A?
39. 39.📦 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?
40. 40.📋 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

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