Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 578 · 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.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to save paper (c) to make it faster (d) to see if it learned
2. 2.🧪 You can plan a simple AI project with… (a) only a big robot (b) nothing at all (c) paper and examples (d) a secret password
3. 3.🎯 Kabir’s leaf identifier was tested on 10 new leaf photos and got 6 right. What is its accuracy in percent?
4. 4.🎯 Nisha’s spam spotter was tested on 5 new messages and got 4 right. What is its accuracy in percent?
5. 5.🧪 What is accuracy? (a) correct + total (b) total − correct (c) total × 2 (d) correct ÷ total × 100
6. 6.📋 Planning an AI project: which comes first — work out the accuracy or fix it and test again? (a) work out the accuracy (b) fix it and test again
7. 7.📋 Planning an AI project: which comes first — test on new photos or let it learn patterns? (a) test on new photos (b) let it learn patterns
8. 8.🧪 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
9. 9.📋 Planning an AI project: which comes first — calculate percent right or let it learn patterns? (a) calculate percent right (b) let it learn patterns
10. 10.🎯 Ishaan’s handwriting reader was tested on 25 new handwritten letters and got 21 right. What is its accuracy in percent?
11. 11.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
12. 12.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
13. 13.📦 Ishaan collected 150 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
14. 14.❌ Meera’s bird-song app was tested on 26 new bird songs and got 17 right. How many did it get wrong?
15. 15.🎯 Arjun’s fruit sorter is 50% accurate. If it is tested on 70 new fruit photos, how many should it get right?
16. 16.🎯 Saanvi’s leaf identifier was tested on 5 new leaf photos and got 4 right. What is its accuracy in percent?
17. 17.🎯 Vihaan’s fruit sorter was tested on 4 new fruit photos and got 3 right. What is its accuracy in percent?
18. 18.📋 Planning an AI project: which comes first — correct bad labels or label each example? (a) correct bad labels (b) label each example
19. 19.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 39 right and Model B got 26 right. How many percentage points more accurate is Model A?
20. 20.📋 Planning an AI project: which comes first — test on new photos or work out the accuracy? (a) test on new photos (b) work out the accuracy
21. 21.❌ Vihaan’s recycling sorter was tested on 45 new waste photos and got 41 right. How many did it get wrong?
22. 22.📋 Planning an AI project: which comes first — calculate percent right or try unseen examples? (a) calculate percent right (b) try unseen examples
23. 23.📋 Planning an AI project: which comes first — split train and test or improve data, retest? (a) split train and test (b) improve data, retest
24. 24.📦 Tara collected 140 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
25. 25.❌ Ananya’s recycling sorter was tested on 22 new waste photos and got 20 right. How many did it get wrong?
26. 26.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
27. 27.📦 Nisha collected 170 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
28. 28.🎯 Nisha’s handwriting reader is 90% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
29. 29.🎯 Ishaan’s handwriting reader was tested on 25 new handwritten letters and got 24 right. What is its accuracy in percent?
30. 30.❌ Saanvi’s handwriting reader was tested on 35 new handwritten letters and got 30 right. How many did it get wrong?
31. 31.📦 Aarav collected 40 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
32. 32.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
33. 33.📋 Planning an AI project: which comes first — label each example or collect fruit photos? (a) label each example (b) collect fruit photos
34. 34.📋 Planning an AI project: which comes first — train the model or correct bad labels? (a) train the model (b) correct bad labels
35. 35.❌ Tara’s handwriting reader was tested on 20 new handwritten letters and got 15 right. How many did it get wrong?
36. 36.🎯 Saanvi’s fruit sorter was tested on 25 new fruit photos and got 13 right. What is its accuracy in percent?
37. 37.📋 Planning an AI project: which comes first — improve data, retest or collect fruit photos? (a) improve data, retest (b) collect fruit photos
38. 38.🎯 Vihaan’s recycling sorter was tested on 20 new waste photos and got 12 right. What is its accuracy in percent?
39. 39.🎯 Vihaan’s bird-song app is 50% accurate. If it is tested on 40 new bird songs, how many should it get right?
40. 40.🎯 Saanvi’s leaf identifier is 50% accurate. If it is tested on 40 new leaf photos, how many should it get right?

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