Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 286 · 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.📦 Ishaan collected 90 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
2. 2.📦 Meera collected 90 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
3. 3.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 20 right and Model B got 13 right. How many percentage points more accurate is Model A?
4. 4.❌ Rohan’s recycling sorter was tested on 43 new waste photos and got 38 right. How many did it get wrong?
5. 5.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a new colour screen (c) a louder speaker (d) more labelled examples
6. 6.🧪 Why must you test a model on examples it has NOT seen? (a) to see if it learned (b) to make it faster (c) to save paper (d) to make it bigger
7. 7.❌ Aarav’s handwriting reader was tested on 42 new handwritten letters and got 34 right. How many did it get wrong?
8. 8.🎯 Tara’s handwriting reader is 50% accurate. If it is tested on 50 new handwritten letters, how many should it get right?
9. 9.🎯 Arjun’s recycling sorter is 70% accurate. If it is tested on 70 new waste photos, how many should it get right?
10. 10.🎯 Aarav’s fruit sorter was tested on 20 new fruit photos and got 19 right. What is its accuracy in percent?
11. 11.📋 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
12. 12.🎯 Meera’s bird-song app is 80% accurate. If it is tested on 70 new bird songs, how many should it get right?
13. 13.📋 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
14. 14.📋 Planning an AI project: which comes first — pick a question to solve or calculate percent right? (a) pick a question to solve (b) calculate percent right
15. 15.🎯 Rohan’s recycling sorter is 70% accurate. If it is tested on 10 new waste photos, how many should it get right?
16. 16.❌ Ananya’s spam spotter was tested on 43 new messages and got 34 right. How many did it get wrong?
17. 17.📋 Planning an AI project: which comes first — label each example or let it learn patterns? (a) label each example (b) let it learn patterns
18. 18.📋 Planning an AI project: which comes first — split train and test or test on new photos? (a) split train and test (b) test on new photos
19. 19.📋 Planning an AI project: which comes first — try unseen examples or let it learn patterns? (a) try unseen examples (b) let it learn patterns
20. 20.🎯 Rohan’s spam spotter is 50% accurate. If it is tested on 90 new messages, how many should it get right?
21. 21.📦 Nisha collected 120 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
22. 22.❌ Nisha’s bird-song app was tested on 40 new bird songs and got 37 right. How many did it get wrong?
23. 23.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
24. 24.📋 Planning an AI project: which comes first — calculate percent right or split train and test? (a) calculate percent right (b) split train and test
25. 25.❌ Saanvi’s handwriting reader was tested on 25 new handwritten letters and got 21 right. How many did it get wrong?
26. 26.🎯 Diya’s handwriting reader is 50% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
27. 27.🎯 Meera’s bird-song app was tested on 10 new bird songs and got 6 right. What is its accuracy in percent?
28. 28.🧪 You can plan a simple AI project with… (a) nothing at all (b) paper and examples (c) only a big robot (d) a secret password
29. 29.🎯 Diya’s leaf identifier was tested on 5 new leaf photos and got 5 right. What is its accuracy in percent?
30. 30.🎯 Meera’s recycling sorter is 70% accurate. If it is tested on 50 new waste photos, how many should it get right?
31. 31.🎯 Aarav’s bird-song app is 60% accurate. If it is tested on 40 new bird songs, how many should it get right?
32. 32.🎯 Nisha’s leaf identifier is 60% accurate. If it is tested on 70 new leaf photos, how many should it get right?
33. 33.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 10 right and Model B got 5 right. How many percentage points more accurate is Model A?
34. 34.📋 Planning an AI project: which comes first — calculate percent right or label each example? (a) calculate percent right (b) label each example
35. 35.🎯 Kabir’s bird-song app is 60% accurate. If it is tested on 20 new bird songs, how many should it get right?
36. 36.🎯 Tara’s bird-song app was tested on 4 new bird songs and got 2 right. What is its accuracy in percent?
37. 37.📋 Planning an AI project: which comes first — test on new photos or train the model? (a) test on new photos (b) train the model
38. 38.🎯 Saanvi’s spam spotter is 70% accurate. If it is tested on 70 new messages, how many should it get right?
39. 39.🎯 Diya’s handwriting reader was tested on 4 new handwritten letters and got 3 right. What is its accuracy in percent?
40. 40.📦 Rohan collected 90 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?

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