Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 253 · 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.📋 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
2. 2.🧪 What is accuracy? (a) correct + total (b) total × 2 (c) correct ÷ total × 100 (d) total − correct
3. 3.🎯 Saanvi’s leaf identifier is 60% accurate. If it is tested on 10 new leaf photos, how many should it get right?
4. 4.🎯 Nisha’s fruit sorter was tested on 25 new fruit photos and got 19 right. What is its accuracy in percent?
5. 5.❌ Vihaan’s spam spotter was tested on 16 new messages and got 12 right. How many did it get wrong?
6. 6.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) fewer examples (c) more labelled examples (d) a louder speaker
7. 7.📦 Arjun collected 160 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
8. 8.🎯 Rohan’s recycling sorter was tested on 4 new waste photos and got 3 right. What is its accuracy in percent?
9. 9.🎯 Ananya’s handwriting reader was tested on 5 new handwritten letters and got 5 right. What is its accuracy in percent?
10. 10.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 37 right and Model B got 29 right. How many percentage points more accurate is Model A?
11. 11.📋 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
12. 12.📋 Planning an AI project: which comes first — try unseen examples or label each example? (a) try unseen examples (b) label each example
13. 13.🧪 You can plan a simple AI project with… (a) nothing at all (b) only a big robot (c) paper and examples (d) a secret password
14. 14.🎯 Saanvi’s recycling sorter is 70% accurate. If it is tested on 50 new waste photos, how many should it get right?
15. 15.🎯 Nisha’s recycling sorter was tested on 5 new waste photos and got 5 right. What is its accuracy in percent?
16. 16.🎯 Tara’s leaf identifier was tested on 25 new leaf photos and got 25 right. What is its accuracy in percent?
17. 17.🎯 Nisha’s bird-song app was tested on 25 new bird songs and got 23 right. What is its accuracy in percent?
18. 18.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
19. 19.🎯 Nisha’s leaf identifier is 80% accurate. If it is tested on 100 new leaf photos, how many should it get right?
20. 20.📋 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
21. 21.🎯 Ananya’s handwriting reader was tested on 10 new handwritten letters and got 8 right. What is its accuracy in percent?
22. 22.❌ Saanvi’s recycling sorter was tested on 50 new waste photos and got 45 right. How many did it get wrong?
23. 23.🎯 Diya’s bird-song app is 80% accurate. If it is tested on 90 new bird songs, how many should it get right?
24. 24.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
25. 25.🧪 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
26. 26.📋 Planning an AI project: which comes first — gather many examples or label each example? (a) gather many examples (b) label each example
27. 27.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 23 right and Model B got 19 right. How many percentage points more accurate is Model A?
28. 28.📦 Tara collected 90 labelled messages for a spam spotter 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 improve data, retest? (a) work out the accuracy (b) improve data, retest
30. 30.📋 Planning an AI project: which comes first — pick a question to solve or train the model? (a) pick a question to solve (b) train the model
31. 31.❌ Aarav’s leaf identifier was tested on 20 new leaf photos and got 19 right. How many did it get wrong?
32. 32.📋 Planning an AI project: which comes first — split train and test or gather many examples? (a) split train and test (b) gather many examples
33. 33.📋 Planning an AI project: which comes first — collect fruit photos or test on new photos? (a) collect fruit photos (b) test on new photos
34. 34.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
35. 35.🎯 Nisha’s fruit sorter is 70% accurate. If it is tested on 30 new fruit photos, how many should it get right?
36. 36.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 40 right and Model B got 29 right. How many percentage points more accurate is Model A?
37. 37.🎯 Ishaan’s spam spotter was tested on 4 new messages and got 3 right. What is its accuracy in percent?
38. 38.❌ Kabir’s handwriting reader was tested on 12 new handwritten letters and got 11 right. How many did it get wrong?
39. 39.📋 Planning an AI project: which comes first — pick a question to solve or split train and test? (a) pick a question to solve (b) split train and test
40. 40.🎯 Kabir’s fruit sorter was tested on 10 new fruit photos and got 7 right. What is its accuracy in percent?

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