Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 198 · 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.🧪 What is accuracy? (a) correct + total (b) correct ÷ total × 100 (c) total × 2 (d) total − correct
2. 2.❌ Nisha’s leaf identifier was tested on 14 new leaf photos and got 13 right. How many did it get wrong?
3. 3.🎯 Arjun’s fruit sorter is 80% accurate. If it is tested on 20 new fruit photos, how many should it get right?
4. 4.🎯 Aarav’s fruit sorter is 80% accurate. If it is tested on 10 new fruit photos, how many should it get right?
5. 5.📦 Saanvi collected 130 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
6. 6.📋 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
7. 7.📋 Planning an AI project: which comes first — set aside test photos or fix it and test again? (a) set aside test photos (b) fix it and test again
8. 8.🎯 Vihaan’s fruit sorter was tested on 10 new fruit photos and got 5 right. What is its accuracy in percent?
9. 9.🧪 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
10. 10.📋 Planning an AI project: which comes first — test on new photos or pick a question to solve? (a) test on new photos (b) pick a question to solve
11. 11.📋 Planning an AI project: which comes first — choose what to sort or gather many examples? (a) choose what to sort (b) gather many examples
12. 12.🎯 Nisha’s fruit sorter was tested on 50 new fruit photos and got 42 right. What is its accuracy in percent?
13. 13.🎯 Saanvi’s bird-song app was tested on 10 new bird songs and got 10 right. What is its accuracy in percent?
14. 14.🎯 Aarav’s recycling sorter was tested on 50 new waste photos and got 29 right. What is its accuracy in percent?
15. 15.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
16. 16.🎯 Tara’s fruit sorter is 80% accurate. If it is tested on 50 new fruit photos, how many should it get right?
17. 17.🧪 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
18. 18.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
19. 19.🧪 You can plan a simple AI project with… (a) only a big robot (b) paper and examples (c) a secret password (d) nothing at all
20. 20.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 19 right and Model B got 15 right. How many percentage points more accurate is Model A?
21. 21.📋 Planning an AI project: which comes first — work out the accuracy or correct bad labels? (a) work out the accuracy (b) correct bad labels
22. 22.📋 Planning an AI project: which comes first — try unseen examples or recheck every label? (a) try unseen examples (b) recheck every label
23. 23.📦 Diya collected 180 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
24. 24.📋 Planning an AI project: which comes first — try unseen examples or collect fruit photos? (a) try unseen examples (b) collect fruit photos
25. 25.❌ Kabir’s handwriting reader was tested on 44 new handwritten letters and got 38 right. How many did it get wrong?
26. 26.📋 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
27. 27.📋 Planning an AI project: which comes first — split train and test or pick a question to solve? (a) split train and test (b) pick a question to solve
28. 28.📦 Ananya collected 140 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
29. 29.📋 Planning an AI project: which comes first — work out the accuracy or choose what to sort? (a) work out the accuracy (b) choose what to sort
30. 30.📋 Planning an AI project: which comes first — calculate percent right or try unseen examples? (a) calculate percent right (b) try unseen examples
31. 31.🎯 Nisha’s fruit sorter was tested on 4 new fruit photos and got 4 right. What is its accuracy in percent?
32. 32.📋 Planning an AI project: which comes first — tag each photo by type or collect fruit photos? (a) tag each photo by type (b) collect fruit photos
33. 33.📋 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
34. 34.🎯 Diya’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
35. 35.📋 Planning an AI project: which comes first — collect fruit photos or correct bad labels? (a) collect fruit photos (b) correct bad labels
36. 36.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
37. 37.❌ Tara’s handwriting reader was tested on 43 new handwritten letters and got 37 right. How many did it get wrong?
38. 38.📋 Planning an AI project: which comes first — pick a question to solve or work out the accuracy? (a) pick a question to solve (b) work out the accuracy
39. 39.📋 Planning an AI project: which comes first — fix it and test again or calculate percent right? (a) fix it and test again (b) calculate percent right
40. 40.🎯 Meera’s bird-song app was tested on 10 new bird songs and got 7 right. What is its accuracy in percent?

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