Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 620 · 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 is 90% accurate. If it is tested on 70 new waste photos, how many should it get right?
2. 2.📋 Planning an AI project: which comes first — train the model or choose what to sort? (a) train the model (b) choose what to sort
3. 3.📋 Planning an AI project: which comes first — recheck every label or split train and test? (a) recheck every label (b) split train and test
4. 4.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) fewer examples (c) a louder speaker (d) a new colour screen
5. 5.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
6. 6.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to see if it learned (c) to make it faster (d) to make it bigger
7. 7.❌ Kabir’s recycling sorter was tested on 28 new waste photos and got 25 right. How many did it get wrong?
8. 8.🧪 You can plan a simple AI project with… (a) paper and examples (b) only a big robot (c) nothing at all (d) a secret password
9. 9.🎯 Tara’s fruit sorter was tested on 4 new fruit photos and got 3 right. What is its accuracy in percent?
10. 10.📋 Planning an AI project: which comes first — choose what to sort or train the model? (a) choose what to sort (b) train the model
11. 11.❌ Ananya’s recycling sorter was tested on 18 new waste photos and got 10 right. How many did it get wrong?
12. 12.📋 Planning an AI project: which comes first — let it learn patterns or calculate percent right? (a) let it learn patterns (b) calculate percent right
13. 13.🎯 Ananya’s bird-song app is 50% accurate. If it is tested on 80 new bird songs, how many should it get right?
14. 14.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 41 right and Model B got 33 right. How many percentage points more accurate is Model A?
15. 15.🧪 What is accuracy? (a) correct ÷ total × 100 (b) total × 2 (c) correct + total (d) total − correct
16. 16.📋 Planning an AI project: which comes first — collect fruit photos or split train and test? (a) collect fruit photos (b) split train and test
17. 17.🎯 Aarav’s bird-song app is 80% accurate. If it is tested on 20 new bird songs, how many should it get right?
18. 18.📋 Planning an AI project: which comes first — split train and test or fix it and test again? (a) split train and test (b) fix it and test again
19. 19.📋 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
20. 20.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
21. 21.🎯 Kabir’s fruit sorter was tested on 4 new fruit photos and got 4 right. What is its accuracy in percent?
22. 22.🎯 Tara’s recycling sorter is 90% accurate. If it is tested on 70 new waste photos, how many should it get right?
23. 23.📦 Tara collected 150 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
24. 24.📋 Planning an AI project: which comes first — fix it and test again or tag each photo by type? (a) fix it and test again (b) tag each photo by type
25. 25.❌ Ishaan’s leaf identifier was tested on 48 new leaf photos and got 46 right. How many did it get wrong?
26. 26.📋 Planning an AI project: which comes first — set aside test photos or collect fruit photos? (a) set aside test photos (b) collect fruit photos
27. 27.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 38 right and Model B got 36 right. How many percentage points more accurate is Model A?
28. 28.📋 Planning an AI project: which comes first — work out the accuracy or label each example? (a) work out the accuracy (b) label each example
29. 29.🎯 Saanvi’s fruit sorter was tested on 50 new fruit photos and got 27 right. What is its accuracy in percent?
30. 30.❌ Ishaan’s fruit sorter was tested on 24 new fruit photos and got 15 right. How many did it get wrong?
31. 31.📦 Kabir collected 40 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
32. 32.📦 Aarav collected 90 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
33. 33.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 38 right and Model B got 30 right. How many percentage points more accurate is Model A?
34. 34.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 18 right and Model B got 16 right. How many percentage points more accurate is Model A?
35. 35.📦 Ishaan collected 90 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
36. 36.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 14 right. How many percentage points more accurate is Model A?
37. 37.📋 Planning an AI project: which comes first — work out the accuracy or try unseen examples? (a) work out the accuracy (b) try unseen examples
38. 38.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 25 right and Model B got 22 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — work out the accuracy or test on new photos? (a) work out the accuracy (b) test on new photos
40. 40.⚖️ Two leaf identifier models were tested on the same 10 leaf photos. Model A got 10 right and Model B got 6 right. How many percentage points more accurate is Model A?

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