Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 933 · 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.❌ Arjun’s fruit sorter was tested on 24 new fruit photos and got 19 right. How many did it get wrong?
2. 2.🎯 Nisha’s leaf identifier is 60% accurate. If it is tested on 40 new leaf photos, how many should it get right?
3. 3.❌ Rohan’s leaf identifier was tested on 18 new leaf photos and got 14 right. How many did it get wrong?
4. 4.❌ Saanvi’s bird-song app was tested on 26 new bird songs and got 18 right. How many did it get wrong?
5. 5.❌ Vihaan’s recycling sorter was tested on 29 new waste photos and got 27 right. How many did it get wrong?
6. 6.🎯 Kabir’s bird-song app was tested on 4 new bird songs and got 3 right. What is its accuracy in percent?
7. 7.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 9 right and Model B got 8 right. How many percentage points more accurate is Model A?
8. 8.❌ Diya’s recycling sorter was tested on 27 new waste photos and got 24 right. How many did it get wrong?
9. 9.📋 Planning an AI project: which comes first — correct bad labels or collect fruit photos? (a) correct bad labels (b) collect fruit photos
10. 10.📋 Planning an AI project: which comes first — calculate percent right or set aside test photos? (a) calculate percent right (b) set aside test photos
11. 11.🎯 Meera’s spam spotter was tested on 20 new messages and got 16 right. What is its accuracy in percent?
12. 12.📋 Planning an AI project: which comes first — label each example or gather many examples? (a) label each example (b) gather many examples
13. 13.📋 Planning an AI project: which comes first — try unseen examples or recheck every label? (a) try unseen examples (b) recheck every label
14. 14.📋 Planning an AI project: which comes first — pick a question to solve or label each example? (a) pick a question to solve (b) label each example
15. 15.📋 Planning an AI project: which comes first — train the model or work out the accuracy? (a) train the model (b) work out the accuracy
16. 16.📋 Planning an AI project: which comes first — split train and test or let it learn patterns? (a) split train and test (b) let it learn patterns
17. 17.📋 Planning an AI project: which comes first — collect fruit photos or train the model? (a) collect fruit photos (b) train the model
18. 18.🎯 Aarav’s spam spotter was tested on 25 new messages and got 24 right. What is its accuracy in percent?
19. 19.❌ Diya’s recycling sorter was tested on 32 new waste photos and got 27 right. How many did it get wrong?
20. 20.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 45 right and Model B got 44 right. How many percentage points more accurate is Model A?
21. 21.🎯 Vihaan’s recycling sorter was tested on 5 new waste photos and got 3 right. What is its accuracy in percent?
22. 22.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a louder speaker (c) more labelled examples (d) a new colour screen
23. 23.🧪 What is accuracy? (a) correct ÷ total × 100 (b) correct + total (c) total − correct (d) total × 2
24. 24.❌ Aarav’s leaf identifier was tested on 25 new leaf photos and got 19 right. How many did it get wrong?
25. 25.🎯 Saanvi’s leaf identifier was tested on 4 new leaf photos and got 4 right. What is its accuracy in percent?
26. 26.📋 Planning an AI project: which comes first — split train and test or collect fruit photos? (a) split train and test (b) collect fruit photos
27. 27.🎯 Ananya’s recycling sorter was tested on 4 new waste photos and got 2 right. What is its accuracy in percent?
28. 28.🎯 Tara’s spam spotter is 80% accurate. If it is tested on 30 new messages, how many should it get right?
29. 29.⚖️ 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?
30. 30.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 5 right. How many percentage points more accurate is Model A?
31. 31.📋 Planning an AI project: which comes first — work out the accuracy or let it learn patterns? (a) work out the accuracy (b) let it learn patterns
32. 32.📋 Planning an AI project: which comes first — collect fruit photos or recheck every label? (a) collect fruit photos (b) recheck every label
33. 33.📋 Planning an AI project: which comes first — collect fruit photos or calculate percent right? (a) collect fruit photos (b) calculate percent right
34. 34.❌ Arjun’s fruit sorter was tested on 14 new fruit photos and got 13 right. How many did it get wrong?
35. 35.📋 Planning an AI project: which comes first — split train and test or work out the accuracy? (a) split train and test (b) work out the accuracy
36. 36.📋 Planning an AI project: which comes first — split train and test or choose what to sort? (a) split train and test (b) choose what to sort
37. 37.🧪 You can plan a simple AI project with… (a) paper and examples (b) a secret password (c) only a big robot (d) nothing at all
38. 38.📋 Planning an AI project: which comes first — let it learn patterns or collect fruit photos? (a) let it learn patterns (b) collect fruit photos
39. 39.📋 Planning an AI project: which comes first — improve data, retest or gather many examples? (a) improve data, retest (b) gather many examples
40. 40.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 20 right and Model B got 18 right. How many percentage points more accurate is Model A?

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