Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 404 · 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 × 100 (b) correct + total (c) total × 2 (d) total − correct
2. 2.📋 Planning an AI project: which comes first — tag each photo by type or calculate percent right? (a) tag each photo by type (b) calculate percent right
3. 3.📋 Planning an AI project: which comes first — calculate percent right or test on new photos? (a) calculate percent right (b) test on new photos
4. 4.❌ Diya’s fruit sorter was tested on 21 new fruit photos and got 19 right. How many did it get wrong?
5. 5.📋 Planning an AI project: which comes first — set aside test photos or correct bad labels? (a) set aside test photos (b) correct bad labels
6. 6.🧪 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
7. 7.🎯 Nisha’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
8. 8.📦 Diya collected 80 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
9. 9.❌ Diya’s bird-song app was tested on 20 new bird songs and got 15 right. How many did it get wrong?
10. 10.🎯 Rohan’s leaf identifier was tested on 10 new leaf photos and got 6 right. What is its accuracy in percent?
11. 11.🎯 Aarav’s handwriting reader was tested on 5 new handwritten letters and got 5 right. What is its accuracy in percent?
12. 12.🎯 Kabir’s fruit sorter is 60% accurate. If it is tested on 100 new fruit photos, how many should it get right?
13. 13.❌ Saanvi’s spam spotter was tested on 38 new messages and got 29 right. How many did it get wrong?
14. 14.🎯 Kabir’s fruit sorter is 70% accurate. If it is tested on 20 new fruit photos, how many should it get right?
15. 15.📋 Planning an AI project: which comes first — collect fruit photos or calculate percent right? (a) collect fruit photos (b) calculate percent right
16. 16.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 25 right and Model B got 23 right. How many percentage points more accurate is Model A?
17. 17.🎯 Tara’s leaf identifier is 50% accurate. If it is tested on 10 new leaf photos, how many should it get right?
18. 18.❌ Aarav’s recycling sorter was tested on 46 new waste photos and got 45 right. How many did it get wrong?
19. 19.🎯 Saanvi’s leaf identifier was tested on 50 new leaf photos and got 41 right. What is its accuracy in percent?
20. 20.🎯 Kabir’s recycling sorter is 50% accurate. If it is tested on 30 new waste photos, how many should it get right?
21. 21.⚖️ 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?
22. 22.📋 Planning an AI project: which comes first — label each example or try unseen examples? (a) label each example (b) try unseen examples
23. 23.📦 Diya collected 140 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
24. 24.🎯 Ananya’s recycling sorter is 80% accurate. If it is tested on 40 new waste photos, how many should it get right?
25. 25.📋 Planning an AI project: which comes first — let it learn patterns or try unseen examples? (a) let it learn patterns (b) try unseen examples
26. 26.🎯 Tara’s fruit sorter was tested on 50 new fruit photos and got 48 right. What is its accuracy in percent?
27. 27.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
28. 28.📋 Planning an AI project: which comes first — tag each photo by type or recheck every label? (a) tag each photo by type (b) recheck every label
29. 29.🎯 Ananya’s spam spotter was tested on 10 new messages and got 8 right. What is its accuracy in percent?
30. 30.⚖️ Two recycling sorter models were tested on the same 50 waste photos. Model A got 49 right and Model B got 28 right. How many percentage points more accurate is Model A?
31. 31.❌ Aarav’s leaf identifier was tested on 43 new leaf photos and got 40 right. How many did it get wrong?
32. 32.📋 Planning an AI project: which comes first — pick a question to solve or try unseen examples? (a) pick a question to solve (b) try unseen examples
33. 33.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 23 right and Model B got 22 right. How many percentage points more accurate is Model A?
34. 34.🎯 Ananya’s recycling sorter was tested on 25 new waste photos and got 20 right. What is its accuracy in percent?
35. 35.🎯 Nisha’s leaf identifier was tested on 25 new leaf photos and got 25 right. What is its accuracy in percent?
36. 36.🎯 Rohan’s fruit sorter was tested on 20 new fruit photos and got 19 right. What is its accuracy in percent?
37. 37.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 31 right and Model B got 28 right. How many percentage points more accurate is Model A?
38. 38.🎯 Rohan’s bird-song app was tested on 20 new bird songs and got 20 right. What is its accuracy in percent?
39. 39.🧪 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
40. 40.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 13 right. How many percentage points more accurate is Model A?

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