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AI for students lesson 23: Design a tiny AI project · Set 236 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.📋 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
  2. 2.📦 Kabir collected 140 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
  3. 3.📦 Aarav collected 80 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
  4. 4.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 15 right and Model B got 14 right. How many percentage points more accurate is Model A?
  5. 5.📋 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
  6. 6.🧪 What is accuracy? (a) total × 2 (b) correct + total (c) total − correct (d) correct ÷ total × 100
  7. 7.🎯 Nisha’s spam spotter was tested on 5 new messages and got 4 right. What is its accuracy in percent?
  8. 8.❌ Meera’s handwriting reader was tested on 45 new handwritten letters and got 44 right. How many did it get wrong?
  9. 9.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
  10. 10.📦 Vihaan collected 90 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
  11. 11.🎯 Kabir’s leaf identifier was tested on 10 new leaf photos and got 9 right. What is its accuracy in percent?
  12. 12.📦 Kabir collected 180 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
  13. 13.🎯 Vihaan’s recycling sorter was tested on 4 new waste photos and got 2 right. What is its accuracy in percent?
  14. 14.🧪 You can plan a simple AI project with… (a) paper and examples (b) a secret password (c) only a big robot (d) nothing at all
  15. 15.📋 Planning an AI project: which comes first — calculate percent right or split train and test? (a) calculate percent right (b) split train and test
  16. 16.📋 Planning an AI project: which comes first — label each example or let it learn patterns? (a) label each example (b) let it learn patterns
  17. 17.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) more labelled examples (c) a new colour screen (d) fewer examples
  18. 18.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to see if it learned (c) to save paper (d) to make it bigger
  19. 19.📋 Planning an AI project: which comes first — try unseen examples or gather many examples? (a) try unseen examples (b) gather many examples
  20. 20.📋 Planning an AI project: which comes first — gather many examples or correct bad labels? (a) gather many examples (b) correct bad labels
  21. 21.🎯 Diya’s fruit sorter is 60% accurate. If it is tested on 20 new fruit photos, how many should it get right?
  22. 22.📋 Planning an AI project: which comes first — improve data, retest or split train and test? (a) improve data, retest (b) split train and test
  23. 23.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 9 right and Model B got 7 right. How many percentage points more accurate is Model A?
  24. 24.❌ Meera’s spam spotter was tested on 36 new messages and got 33 right. How many did it get wrong?
  25. 25.📋 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
  26. 26.📋 Planning an AI project: which comes first — tag each photo by type or improve data, retest? (a) tag each photo by type (b) improve data, retest
  27. 27.📋 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
  28. 28.📦 Arjun collected 160 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
  29. 29.🎯 Diya’s handwriting reader was tested on 4 new handwritten letters and got 2 right. What is its accuracy in percent?
  30. 30.📋 Planning an AI project: which comes first — fix it and test again or correct bad labels? (a) fix it and test again (b) correct bad labels
  31. 31.📋 Planning an AI project: which comes first — let it learn patterns or label each example? (a) let it learn patterns (b) label each example
  32. 32.🎯 Kabir’s recycling sorter is 70% accurate. If it is tested on 20 new waste photos, how many should it get right?
  33. 33.📋 Planning an AI project: which comes first — pick a question to solve or label each example? (a) pick a question to solve (b) label each example
  34. 34.📋 Planning an AI project: which comes first — tag each photo by type or pick a question to solve? (a) tag each photo by type (b) pick a question to solve
  35. 35.🎯 Ishaan’s leaf identifier was tested on 5 new leaf photos and got 5 right. What is its accuracy in percent?
  36. 36.❌ Diya’s leaf identifier was tested on 37 new leaf photos and got 33 right. How many did it get wrong?
  37. 37.📋 Planning an AI project: which comes first — fix it and test again or test on new photos? (a) fix it and test again (b) test on new photos
  38. 38.🎯 Tara’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
  39. 39.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 7 right and Model B got 5 right. How many percentage points more accurate is Model A?
  40. 40.📋 Planning an AI project: which comes first — improve data, retest or recheck every label? (a) improve data, retest (b) recheck every label

Answer key

  1. calculate percent right
  2. 112
  3. 64
  4. 5
  5. work out the accuracy
  6. correct ÷ total × 100
  7. 80
  8. 1
  9. 20
  10. 72
  11. 90
  12. 144
  13. 50
  14. paper and examples
  15. split train and test
  16. label each example
  17. more labelled examples
  18. to see if it learned
  19. gather many examples
  20. gather many examples
  21. 12
  22. split train and test
  23. 20
  24. 3
  25. split train and test
  26. tag each photo by type
  27. tag each photo by type
  28. 128
  29. 50
  30. correct bad labels
  31. label each example
  32. 14
  33. pick a question to solve
  34. pick a question to solve
  35. 100
  36. 4
  37. test on new photos
  38. 50
  39. 20
  40. recheck every label

Free ai for students lessons, practice and worksheets at talentjr.in/ai-for-students