Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 634 · 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.🎯 Nisha’s fruit sorter is 70% accurate. If it is tested on 70 new fruit photos, how many should it get right?
2. 2.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) a louder speaker (c) fewer examples (d) a new colour screen
3. 3.❌ Ananya’s handwriting reader was tested on 40 new handwritten letters and got 31 right. How many did it get wrong?
4. 4.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
5. 5.📋 Planning an AI project: which comes first — try unseen examples or improve data, retest? (a) try unseen examples (b) improve data, retest
6. 6.📦 Kabir collected 170 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
7. 7.🎯 Kabir’s fruit sorter was tested on 4 new fruit photos and got 3 right. What is its accuracy in percent?
8. 8.🎯 Diya’s bird-song app was tested on 25 new bird songs and got 25 right. What is its accuracy in percent?
9. 9.📦 Ananya collected 160 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
10. 10.📦 Saanvi collected 40 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
11. 11.📋 Planning an AI project: which comes first — calculate percent right or let it learn patterns? (a) calculate percent right (b) let it learn patterns
12. 12.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 7 right and Model B got 6 right. How many percentage points more accurate is Model A?
13. 13.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 23 right and Model B got 18 right. How many percentage points more accurate is Model A?
14. 14.📋 Planning an AI project: which comes first — pick a question to solve or test on new photos? (a) pick a question to solve (b) test on new photos
15. 15.📋 Planning an AI project: which comes first — gather many examples or label each example? (a) gather many examples (b) label each example
16. 16.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
17. 17.📦 Meera collected 50 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
18. 18.📋 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
19. 19.🎯 Aarav’s leaf identifier is 90% accurate. If it is tested on 60 new leaf photos, how many should it get right?
20. 20.🎯 Arjun’s handwriting reader is 70% accurate. If it is tested on 10 new handwritten letters, how many should it get right?
21. 21.🎯 Arjun’s spam spotter is 90% accurate. If it is tested on 10 new messages, how many should it get right?
22. 22.🧪 You can plan a simple AI project with… (a) nothing at all (b) a secret password (c) paper and examples (d) only a big robot
23. 23.❌ Arjun’s fruit sorter was tested on 30 new fruit photos and got 25 right. How many did it get wrong?
24. 24.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 7 right. How many percentage points more accurate is Model A?
25. 25.🧪 What is accuracy? (a) total − correct (b) total × 2 (c) correct + total (d) correct ÷ total × 100
26. 26.📋 Planning an AI project: which comes first — try unseen examples or gather many examples? (a) try unseen examples (b) gather many examples
27. 27.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 14 right and Model B got 13 right. How many percentage points more accurate is Model A?
28. 28.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it bigger (c) to see if it learned (d) to make it faster
29. 29.❌ Ishaan’s bird-song app was tested on 37 new bird songs and got 30 right. How many did it get wrong?
30. 30.🎯 Ishaan’s handwriting reader is 70% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
31. 31.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 48 right and Model B got 29 right. How many percentage points more accurate is Model A?
32. 32.❌ Aarav’s spam spotter was tested on 28 new messages and got 25 right. How many did it get wrong?
33. 33.🎯 Ishaan’s bird-song app was tested on 25 new bird songs and got 22 right. What is its accuracy in percent?
34. 34.📋 Planning an AI project: which comes first — recheck every label or gather many examples? (a) recheck every label (b) gather many examples
35. 35.🎯 Tara’s spam spotter was tested on 10 new messages and got 9 right. What is its accuracy in percent?
36. 36.🎯 Meera’s bird-song app was tested on 10 new bird songs and got 5 right. What is its accuracy in percent?
37. 37.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
38. 38.🎯 Arjun’s bird-song app is 80% accurate. If it is tested on 50 new bird songs, how many should it get right?
39. 39.🎯 Tara’s bird-song app was tested on 25 new bird songs and got 23 right. What is its accuracy in percent?
40. 40.🎯 Ishaan’s handwriting reader was tested on 50 new handwritten letters and got 33 right. What is its accuracy in percent?

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