Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 464 · 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 is 80% accurate. If it is tested on 60 new fruit photos, how many should it get right?
2. 2.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
3. 3.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 25 right and Model B got 19 right. How many percentage points more accurate is Model A?
4. 4.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to see if it learned (c) to make it faster (d) to save paper
5. 5.📋 Planning an AI project: which comes first — train the model or fix it and test again? (a) train the model (b) fix it and test again
6. 6.📋 Planning an AI project: which comes first — choose what to sort or try unseen examples? (a) choose what to sort (b) try unseen examples
7. 7.📋 Planning an AI project: which comes first — test on new photos or train the model? (a) test on new photos (b) train the model
8. 8.🎯 Ananya’s fruit sorter was tested on 5 new fruit photos and got 4 right. What is its accuracy in percent?
9. 9.📋 Planning an AI project: which comes first — try unseen examples or split train and test? (a) try unseen examples (b) split train and test
10. 10.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) fewer examples (d) more labelled examples
11. 11.🎯 Rohan’s leaf identifier was tested on 20 new leaf photos and got 14 right. What is its accuracy in percent?
12. 12.📋 Planning an AI project: which comes first — recheck every label or calculate percent right? (a) recheck every label (b) calculate percent right
13. 13.📦 Diya collected 110 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
14. 14.📋 Planning an AI project: which comes first — calculate percent right or fix it and test again? (a) calculate percent right (b) fix it and test again
15. 15.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 21 right and Model B got 16 right. How many percentage points more accurate is Model A?
16. 16.🧪 You can plan a simple AI project with… (a) paper and examples (b) nothing at all (c) a secret password (d) only a big robot
17. 17.📋 Planning an AI project: which comes first — correct bad labels or fix it and test again? (a) correct bad labels (b) fix it and test again
18. 18.🎯 Rohan’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
19. 19.📋 Planning an AI project: which comes first — tag each photo by type or gather many examples? (a) tag each photo by type (b) gather many examples
20. 20.📋 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
21. 21.🎯 Meera’s handwriting reader was tested on 50 new handwritten letters and got 33 right. What is its accuracy in percent?
22. 22.📋 Planning an AI project: which comes first — test on new photos or improve data, retest? (a) test on new photos (b) improve data, retest
23. 23.📦 Meera collected 70 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
24. 24.🎯 Saanvi’s leaf identifier was tested on 25 new leaf photos and got 14 right. What is its accuracy in percent?
25. 25.📦 Rohan collected 60 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
26. 26.❌ Vihaan’s fruit sorter was tested on 37 new fruit photos and got 31 right. How many did it get wrong?
27. 27.📋 Planning an AI project: which comes first — work out the accuracy or try unseen examples? (a) work out the accuracy (b) try unseen examples
28. 28.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
29. 29.📋 Planning an AI project: which comes first — fix it and test again or tag each photo by type? (a) fix it and test again (b) tag each photo by type
30. 30.🎯 Vihaan’s fruit sorter is 80% accurate. If it is tested on 100 new fruit photos, how many should it get right?
31. 31.📦 Rohan collected 160 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
32. 32.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 7 right and Model B got 5 right. How many percentage points more accurate is Model A?
33. 33.🎯 Saanvi’s leaf identifier is 50% accurate. If it is tested on 70 new leaf photos, how many should it get right?
34. 34.🎯 Arjun’s handwriting reader was tested on 4 new handwritten letters and got 3 right. What is its accuracy in percent?
35. 35.🎯 Meera’s fruit sorter is 80% accurate. If it is tested on 30 new fruit photos, how many should it get right?
36. 36.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
37. 37.📦 Tara collected 160 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
38. 38.🎯 Rohan’s recycling sorter was tested on 20 new waste photos and got 15 right. What is its accuracy in percent?
39. 39.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
40. 40.📋 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

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