Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 369 · 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 bird-song app is 50% accurate. If it is tested on 10 new bird songs, how many should it get right?
2. 2.📋 Planning an AI project: which comes first — collect fruit photos or label each example? (a) collect fruit photos (b) label each example
3. 3.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 14 right and Model B got 12 right. How many percentage points more accurate is Model A?
4. 4.📋 Planning an AI project: which comes first — try unseen examples or work out the accuracy? (a) try unseen examples (b) work out the accuracy
5. 5.🧪 You can plan a simple AI project with… (a) a secret password (b) only a big robot (c) paper and examples (d) nothing at all
6. 6.🧪 What is accuracy? (a) total × 2 (b) total − correct (c) correct + total (d) correct ÷ total × 100
7. 7.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a louder speaker (c) more labelled examples (d) a new colour screen
8. 8.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 18 right and Model B got 15 right. How many percentage points more accurate is Model A?
9. 9.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 9 right and Model B got 6 right. How many percentage points more accurate is Model A?
10. 10.❌ Ananya’s handwriting reader was tested on 18 new handwritten letters and got 15 right. How many did it get wrong?
11. 11.📋 Planning an AI project: which comes first — correct bad labels or pick a question to solve? (a) correct bad labels (b) pick a question to solve
12. 12.🎯 Tara’s spam spotter is 50% accurate. If it is tested on 70 new messages, how many should it get right?
13. 13.📋 Planning an AI project: which comes first — try unseen examples or fix it and test again? (a) try unseen examples (b) fix it and test again
14. 14.🎯 Saanvi’s recycling sorter was tested on 4 new waste photos and got 4 right. What is its accuracy in percent?
15. 15.❌ Meera’s leaf identifier was tested on 22 new leaf photos and got 21 right. How many did it get wrong?
16. 16.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 19 right and Model B got 17 right. How many percentage points more accurate is Model A?
17. 17.🎯 Ananya’s bird-song app is 70% accurate. If it is tested on 90 new bird songs, how many should it get right?
18. 18.❌ Arjun’s leaf identifier was tested on 16 new leaf photos and got 12 right. How many did it get wrong?
19. 19.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 46 right and Model B got 34 right. How many percentage points more accurate is Model A?
20. 20.📦 Ananya collected 80 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
21. 21.🧪 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
22. 22.❌ Kabir’s fruit sorter was tested on 41 new fruit photos and got 38 right. How many did it get wrong?
23. 23.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 20 right and Model B got 17 right. How many percentage points more accurate is Model A?
24. 24.📋 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
25. 25.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 44 right and Model B got 40 right. How many percentage points more accurate is Model A?
26. 26.📋 Planning an AI project: which comes first — pick a question to solve or improve data, retest? (a) pick a question to solve (b) improve data, retest
27. 27.📋 Planning an AI project: which comes first — improve data, retest or train the model? (a) improve data, retest (b) train the model
28. 28.📦 Saanvi collected 80 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
29. 29.🎯 Saanvi’s leaf identifier was tested on 20 new leaf photos and got 12 right. What is its accuracy in percent?
30. 30.📋 Planning an AI project: which comes first — let it learn patterns or pick a question to solve? (a) let it learn patterns (b) pick a question to solve
31. 31.🎯 Tara’s handwriting reader was tested on 50 new handwritten letters and got 36 right. What is its accuracy in percent?
32. 32.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 8 right and Model B got 7 right. How many percentage points more accurate is Model A?
33. 33.📦 Saanvi collected 70 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
34. 34.📦 Aarav collected 100 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
35. 35.📋 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
36. 36.🎯 Tara’s bird-song app is 60% accurate. If it is tested on 50 new bird songs, how many should it get right?
37. 37.📋 Planning an AI project: which comes first — test on new photos or calculate percent right? (a) test on new photos (b) calculate percent right
38. 38.📋 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
39. 39.❌ Arjun’s handwriting reader was tested on 15 new handwritten letters and got 11 right. How many did it get wrong?
40. 40.🎯 Meera’s recycling sorter was tested on 5 new waste photos and got 4 right. What is its accuracy in percent?

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