Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 268 · 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.📋 Planning an AI project: which comes first — tag each photo by type or test on new photos? (a) tag each photo by type (b) test on new photos
2. 2.🎯 Ishaan’s spam spotter is 50% accurate. If it is tested on 90 new messages, how many should it get right?
3. 3.📋 Planning an AI project: which comes first — collect fruit photos or train the model? (a) collect fruit photos (b) train the model
4. 4.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
5. 5.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 25 right and Model B got 23 right. How many percentage points more accurate is Model A?
6. 6.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 24 right and Model B got 23 right. How many percentage points more accurate is Model A?
7. 7.❌ Vihaan’s handwriting reader was tested on 20 new handwritten letters and got 12 right. How many did it get wrong?
8. 8.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 19 right and Model B got 12 right. How many percentage points more accurate is Model A?
9. 9.🎯 Aarav’s handwriting reader is 50% accurate. If it is tested on 100 new handwritten letters, how many should it get right?
10. 10.❌ Ananya’s fruit sorter was tested on 21 new fruit photos and got 19 right. How many did it get wrong?
11. 11.🎯 Rohan’s spam spotter is 50% accurate. If it is tested on 100 new messages, how many should it get right?
12. 12.🧪 You can plan a simple AI project with… (a) nothing at all (b) paper and examples (c) a secret password (d) only a big robot
13. 13.🎯 Kabir’s bird-song app is 70% accurate. If it is tested on 30 new bird songs, how many should it get right?
14. 14.🎯 Ishaan’s fruit sorter was tested on 4 new fruit photos and got 2 right. What is its accuracy in percent?
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.📋 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
17. 17.📋 Planning an AI project: which comes first — work out the accuracy or let it learn patterns? (a) work out the accuracy (b) let it learn patterns
18. 18.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
19. 19.🧪 What is accuracy? (a) correct + total (b) total × 2 (c) correct ÷ total × 100 (d) total − correct
20. 20.📦 Aarav collected 90 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
21. 21.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) fewer examples (d) more labelled examples
22. 22.❌ Meera’s leaf identifier was tested on 30 new leaf photos and got 21 right. How many did it get wrong?
23. 23.⚖️ 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?
24. 24.🎯 Ishaan’s spam spotter was tested on 20 new messages and got 15 right. What is its accuracy in percent?
25. 25.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 20 right and Model B got 18 right. How many percentage points more accurate is Model A?
26. 26.🎯 Ananya’s bird-song app was tested on 25 new bird songs and got 23 right. What is its accuracy in percent?
27. 27.📦 Kabir collected 80 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
28. 28.📋 Planning an AI project: which comes first — try unseen examples or train the model? (a) try unseen examples (b) train the model
29. 29.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 46 right and Model B got 44 right. How many percentage points more accurate is Model A?
30. 30.📦 Nisha collected 120 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
31. 31.📋 Planning an AI project: which comes first — split train and test or work out the accuracy? (a) split train and test (b) work out the accuracy
32. 32.❌ Aarav’s fruit sorter was tested on 21 new fruit photos and got 15 right. How many did it get wrong?
33. 33.❌ Vihaan’s leaf identifier was tested on 36 new leaf photos and got 27 right. How many did it get wrong?
34. 34.📋 Planning an AI project: which comes first — fix it and test again or gather many examples? (a) fix it and test again (b) gather many examples
35. 35.📦 Tara collected 150 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
36. 36.❌ Vihaan’s leaf identifier was tested on 26 new leaf photos and got 23 right. How many did it get wrong?
37. 37.❌ Ishaan’s bird-song app was tested on 33 new bird songs and got 32 right. How many did it get wrong?
38. 38.📦 Kabir collected 150 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
39. 39.📋 Planning an AI project: which comes first — work out the accuracy or choose what to sort? (a) work out the accuracy (b) choose what to sort
40. 40.📦 Ishaan collected 50 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?

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