Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 167 · 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 20 new fruit photos and got 12 right. What is its accuracy in percent?
2. 2.📋 Planning an AI project: which comes first — work out the accuracy or collect fruit photos? (a) work out the accuracy (b) collect fruit photos
3. 3.⚖️ Two leaf identifier models were tested on the same 10 leaf photos. Model A got 9 right and Model B got 6 right. How many percentage points more accurate is Model A?
4. 4.❌ Ishaan’s handwriting reader was tested on 38 new handwritten letters and got 31 right. How many did it get wrong?
5. 5.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 32 right and Model B got 28 right. How many percentage points more accurate is Model A?
6. 6.📋 Planning an AI project: which comes first — label each example or pick a question to solve? (a) label each example (b) pick a question to solve
7. 7.📋 Planning an AI project: which comes first — fix it and test again or let it learn patterns? (a) fix it and test again (b) let it learn patterns
8. 8.📦 Meera collected 140 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
9. 9.📦 Nisha collected 100 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
10. 10.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 9 right and Model B got 6 right. How many percentage points more accurate is Model A?
11. 11.📋 Planning an AI project: which comes first — train the model or split train and test? (a) train the model (b) split train and test
12. 12.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 49 right and Model B got 46 right. How many percentage points more accurate is Model A?
13. 13.🎯 Tara’s recycling sorter was tested on 5 new waste photos and got 4 right. What is its accuracy in percent?
14. 14.📦 Tara collected 80 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
15. 15.📋 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
16. 16.📦 Ishaan collected 90 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
17. 17.📋 Planning an AI project: which comes first — correct bad labels or gather many examples? (a) correct bad labels (b) gather many examples
18. 18.📋 Planning an AI project: which comes first — label each example or test on new photos? (a) label each example (b) test on new photos
19. 19.🎯 Arjun’s fruit sorter was tested on 50 new fruit photos and got 37 right. What is its accuracy in percent?
20. 20.📦 Meera collected 40 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
21. 21.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 19 right and Model B got 17 right. How many percentage points more accurate is Model A?
22. 22.📋 Planning an AI project: which comes first — gather many examples or fix it and test again? (a) gather many examples (b) fix it and test again
23. 23.📦 Rohan collected 50 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
24. 24.❌ Rohan’s handwriting reader was tested on 36 new handwritten letters and got 29 right. How many did it get wrong?
25. 25.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
26. 26.🎯 Nisha’s spam spotter was tested on 25 new messages and got 21 right. What is its accuracy in percent?
27. 27.🎯 Ishaan’s leaf identifier is 90% accurate. If it is tested on 100 new leaf photos, how many should it get right?
28. 28.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to make it bigger (c) to see if it learned (d) to save paper
29. 29.🎯 Ishaan’s leaf identifier was tested on 20 new leaf photos and got 20 right. What is its accuracy in percent?
30. 30.🎯 Nisha’s bird-song app was tested on 4 new bird songs and got 4 right. What is its accuracy in percent?
31. 31.📋 Planning an AI project: which comes first — fix it and test again or work out the accuracy? (a) fix it and test again (b) work out the accuracy
32. 32.📋 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
33. 33.🧪 What is accuracy? (a) correct + total (b) correct ÷ total × 100 (c) total − correct (d) total × 2
34. 34.❌ Diya’s leaf identifier was tested on 50 new leaf photos and got 47 right. How many did it get wrong?
35. 35.📋 Planning an AI project: which comes first — split train and test or try unseen examples? (a) split train and test (b) try unseen examples
36. 36.🧪 You can plan a simple AI project with… (a) a secret password (b) nothing at all (c) only a big robot (d) paper and examples
37. 37.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 19 right and Model B got 12 right. How many percentage points more accurate is Model A?
38. 38.🎯 Ananya’s bird-song app is 50% accurate. If it is tested on 60 new bird songs, how many should it get right?
39. 39.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) a louder speaker (c) fewer examples (d) more labelled examples
40. 40.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 16 right and Model B got 12 right. How many percentage points more accurate is Model A?

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