Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 477 · 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.🎯 Vihaan’s leaf identifier is 50% accurate. If it is tested on 50 new leaf photos, how many should it get right?
2. 2.🎯 Meera’s leaf identifier is 90% accurate. If it is tested on 70 new leaf photos, how many should it get right?
3. 3.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 22 right and Model B got 16 right. How many percentage points more accurate is Model A?
4. 4.📦 Nisha collected 80 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
5. 5.📋 Planning an AI project: which comes first — let it learn patterns or label each example? (a) let it learn patterns (b) label each example
6. 6.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to save paper (c) to see if it learned (d) to make it bigger
7. 7.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) a new colour screen (c) fewer examples (d) a louder speaker
8. 8.📋 Planning an AI project: which comes first — pick a question to solve or tag each photo by type? (a) pick a question to solve (b) tag each photo by type
9. 9.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 18 right and Model B got 16 right. How many percentage points more accurate is Model A?
10. 10.🎯 Meera’s spam spotter is 60% accurate. If it is tested on 20 new messages, how many should it get right?
11. 11.🎯 Aarav’s handwriting reader was tested on 4 new handwritten letters and got 2 right. What is its accuracy in percent?
12. 12.📋 Planning an AI project: which comes first — fix it and test again or let it learn patterns? (a) fix it and test again (b) let it learn patterns
13. 13.🎯 Kabir’s leaf identifier is 70% accurate. If it is tested on 10 new leaf photos, how many should it get right?
14. 14.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 8 right and Model B got 5 right. How many percentage points more accurate is Model A?
15. 15.🧪 You can plan a simple AI project with… (a) only a big robot (b) paper and examples (c) nothing at all (d) a secret password
16. 16.📋 Planning an AI project: which comes first — set aside test photos or work out the accuracy? (a) set aside test photos (b) work out the accuracy
17. 17.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
18. 18.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 10 right and Model B got 6 right. How many percentage points more accurate is Model A?
19. 19.📦 Aarav collected 80 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
20. 20.📦 Diya collected 130 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
21. 21.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 16 right and Model B got 10 right. How many percentage points more accurate is Model A?
22. 22.📋 Planning an AI project: which comes first — try unseen examples or work out the accuracy? (a) try unseen examples (b) work out the accuracy
23. 23.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 20 right and Model B got 18 right. How many percentage points more accurate is Model A?
24. 24.🎯 Kabir’s leaf identifier was tested on 4 new leaf photos and got 3 right. What is its accuracy in percent?
25. 25.🎯 Ananya’s fruit sorter was tested on 50 new fruit photos and got 48 right. What is its accuracy in percent?
26. 26.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 8 right and Model B got 5 right. How many percentage points more accurate is Model A?
27. 27.📋 Planning an AI project: which comes first — work out the accuracy or collect fruit photos? (a) work out the accuracy (b) collect fruit photos
28. 28.❌ Aarav’s bird-song app was tested on 26 new bird songs and got 22 right. How many did it get wrong?
29. 29.📋 Planning an AI project: which comes first — set aside test photos or let it learn patterns? (a) set aside test photos (b) let it learn patterns
30. 30.📋 Planning an AI project: which comes first — split train and test or correct bad labels? (a) split train and test (b) correct bad labels
31. 31.📋 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
32. 32.📋 Planning an AI project: which comes first — calculate percent right or tag each photo by type? (a) calculate percent right (b) tag each photo by type
33. 33.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
34. 34.🎯 Kabir’s recycling sorter is 90% accurate. If it is tested on 90 new waste photos, how many should it get right?
35. 35.📋 Planning an AI project: which comes first — recheck every label or work out the accuracy? (a) recheck every label (b) work out the accuracy
36. 36.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 50 right and Model B got 27 right. How many percentage points more accurate is Model A?
37. 37.❌ Meera’s bird-song app was tested on 22 new bird songs and got 21 right. How many did it get wrong?
38. 38.🧪 What is accuracy? (a) total − correct (b) total × 2 (c) correct ÷ total × 100 (d) correct + total
39. 39.📦 Saanvi collected 150 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
40. 40.🎯 Aarav’s bird-song app is 50% accurate. If it is tested on 90 new bird songs, how many should it get right?

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