Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 398 · 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.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) fewer examples (c) a new colour screen (d) more labelled examples
2. 2.🎯 Aarav’s recycling sorter was tested on 4 new waste photos and got 4 right. What is its accuracy in percent?
3. 3.🎯 Meera’s handwriting reader was tested on 25 new handwritten letters and got 17 right. What is its accuracy in percent?
4. 4.📦 Saanvi collected 40 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
5. 5.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 24 right and Model B got 23 right. How many percentage points more accurate is Model A?
6. 6.📦 Rohan collected 170 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
7. 7.📦 Arjun collected 130 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
8. 8.📋 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
9. 9.🎯 Tara’s fruit sorter was tested on 4 new fruit photos and got 2 right. What is its accuracy in percent?
10. 10.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 11 right. How many percentage points more accurate is Model A?
11. 11.📦 Diya collected 190 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
12. 12.📋 Planning an AI project: which comes first — train the model or test on new photos? (a) train the model (b) test on new photos
13. 13.📋 Planning an AI project: which comes first — pick a question to solve or tag each photo by type? (a) pick a question to solve (b) tag each photo by type
14. 14.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to make it bigger (c) to save paper (d) to see if it learned
15. 15.❌ Saanvi’s leaf identifier was tested on 46 new leaf photos and got 44 right. How many did it get wrong?
16. 16.📦 Diya collected 150 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
17. 17.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 50 right and Model B got 33 right. How many percentage points more accurate is Model A?
18. 18.❌ Aarav’s handwriting reader was tested on 33 new handwritten letters and got 27 right. How many did it get wrong?
19. 19.🎯 Vihaan’s bird-song app was tested on 10 new bird songs and got 10 right. What is its accuracy in percent?
20. 20.📦 Aarav collected 80 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
21. 21.📋 Planning an AI project: which comes first — set aside test photos or work out the accuracy? (a) set aside test photos (b) work out the accuracy
22. 22.🎯 Ishaan’s leaf identifier is 70% accurate. If it is tested on 80 new leaf photos, how many should it get right?
23. 23.📋 Planning an AI project: which comes first — tag each photo by type or try unseen examples? (a) tag each photo by type (b) try unseen examples
24. 24.📋 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
25. 25.🧪 You can plan a simple AI project with… (a) paper and examples (b) a secret password (c) nothing at all (d) only a big robot
26. 26.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 7 right and Model B got 6 right. How many percentage points more accurate is Model A?
27. 27.🎯 Rohan’s bird-song app was tested on 50 new bird songs and got 36 right. What is its accuracy in percent?
28. 28.📦 Kabir collected 190 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
29. 29.🎯 Ishaan’s spam spotter is 70% accurate. If it is tested on 60 new messages, how many should it get right?
30. 30.🎯 Diya’s fruit sorter was tested on 10 new fruit photos and got 9 right. What is its accuracy in percent?
31. 31.❌ Ananya’s bird-song app was tested on 30 new bird songs and got 24 right. How many did it get wrong?
32. 32.📋 Planning an AI project: which comes first — set aside test photos or collect fruit photos? (a) set aside test photos (b) collect fruit photos
33. 33.❌ Tara’s fruit sorter was tested on 20 new fruit photos and got 17 right. How many did it get wrong?
34. 34.🎯 Ishaan’s recycling sorter was tested on 10 new waste photos and got 8 right. What is its accuracy in percent?
35. 35.📦 Aarav collected 40 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
36. 36.📋 Planning an AI project: which comes first — split train and test or label each example? (a) split train and test (b) label each example
37. 37.🎯 Saanvi’s leaf identifier is 50% accurate. If it is tested on 30 new leaf photos, how many should it get right?
38. 38.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 6 right and Model B got 5 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — split train and test or recheck every label? (a) split train and test (b) recheck every label
40. 40.🧪 What is accuracy? (a) total − correct (b) correct + total (c) correct ÷ total × 100 (d) total × 2

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