Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 613 · 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.❌ Ananya’s fruit sorter was tested on 22 new fruit photos and got 15 right. How many did it get wrong?
2. 2.🎯 Diya’s handwriting reader is 60% accurate. If it is tested on 70 new handwritten letters, how many should it get right?
3. 3.🧪 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
4. 4.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
5. 5.📋 Planning an AI project: which comes first — let it learn patterns or split train and test? (a) let it learn patterns (b) split train and test
6. 6.🎯 Meera’s handwriting reader was tested on 10 new handwritten letters and got 6 right. What is its accuracy in percent?
7. 7.📋 Planning an AI project: which comes first — improve data, retest or split train and test? (a) improve data, retest (b) split train and test
8. 8.🧪 You can plan a simple AI project with… (a) a secret password (b) nothing at all (c) paper and examples (d) only a big robot
9. 9.📋 Planning an AI project: which comes first — test on new photos or gather many examples? (a) test on new photos (b) gather many examples
10. 10.🧪 What is accuracy? (a) total × 2 (b) correct ÷ total × 100 (c) correct + total (d) total − correct
11. 11.🎯 Meera’s bird-song app is 60% accurate. If it is tested on 80 new bird songs, how many should it get right?
12. 12.🎯 Diya’s leaf identifier was tested on 5 new leaf photos and got 5 right. What is its accuracy in percent?
13. 13.🎯 Kabir’s recycling sorter was tested on 10 new waste photos and got 7 right. What is its accuracy in percent?
14. 14.❌ Rohan’s spam spotter was tested on 38 new messages and got 29 right. How many did it get wrong?
15. 15.🎯 Arjun’s handwriting reader was tested on 5 new handwritten letters and got 3 right. What is its accuracy in percent?
16. 16.🎯 Arjun’s bird-song app was tested on 50 new bird songs and got 27 right. What is its accuracy in percent?
17. 17.🎯 Ishaan’s recycling sorter was tested on 50 new waste photos and got 37 right. What is its accuracy in percent?
18. 18.📋 Planning an AI project: which comes first — choose what to sort or fix it and test again? (a) choose what to sort (b) fix it and test again
19. 19.🎯 Ananya’s recycling sorter is 80% accurate. If it is tested on 10 new waste photos, how many should it get right?
20. 20.📋 Planning an AI project: which comes first — improve data, retest or collect fruit photos? (a) improve data, retest (b) collect fruit photos
21. 21.🎯 Diya’s handwriting reader is 90% accurate. If it is tested on 30 new handwritten letters, how many should it get right?
22. 22.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it faster (c) to see if it learned (d) to make it bigger
23. 23.❌ Diya’s spam spotter was tested on 37 new messages and got 32 right. How many did it get wrong?
24. 24.🎯 Saanvi’s fruit sorter was tested on 50 new fruit photos and got 35 right. What is its accuracy in percent?
25. 25.📋 Planning an AI project: which comes first — gather many examples or choose what to sort? (a) gather many examples (b) choose what to sort
26. 26.📦 Arjun collected 160 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
27. 27.📋 Planning an AI project: which comes first — collect fruit photos or split train and test? (a) collect fruit photos (b) split train and test
28. 28.📦 Aarav collected 180 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
29. 29.🎯 Saanvi’s recycling sorter was tested on 20 new waste photos and got 20 right. What is its accuracy in percent?
30. 30.📦 Nisha collected 140 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
31. 31.📋 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
32. 32.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 50 right and Model B got 28 right. How many percentage points more accurate is Model A?
33. 33.🎯 Arjun’s handwriting reader was tested on 20 new handwritten letters and got 14 right. What is its accuracy in percent?
34. 34.📋 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
35. 35.📋 Planning an AI project: which comes first — tag each photo by type or correct bad labels? (a) tag each photo by type (b) correct bad labels
36. 36.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 25 right and Model B got 24 right. How many percentage points more accurate is Model A?
37. 37.🎯 Kabir’s spam spotter is 50% accurate. If it is tested on 20 new messages, how many should it get right?
38. 38.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 16 right and Model B got 12 right. How many percentage points more accurate is Model A?
39. 39.🎯 Vihaan’s recycling sorter was tested on 20 new waste photos and got 13 right. What is its accuracy in percent?
40. 40.📋 Planning an AI project: which comes first — gather many examples or try unseen examples? (a) gather many examples (b) try unseen examples

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