Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 547 · 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.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to see if it learned (c) to make it faster (d) to save paper
2. 2.📋 Planning an AI project: which comes first — try unseen examples or work out the accuracy? (a) try unseen examples (b) work out the accuracy
3. 3.🎯 Aarav’s fruit sorter was tested on 50 new fruit photos and got 40 right. What is its accuracy in percent?
4. 4.🧪 What is accuracy? (a) correct ÷ total × 100 (b) total − correct (c) total × 2 (d) correct + total
5. 5.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) fewer examples (d) more labelled examples
6. 6.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
7. 7.📋 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
8. 8.🧪 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
9. 9.📋 Planning an AI project: which comes first — collect fruit photos or work out the accuracy? (a) collect fruit photos (b) work out the accuracy
10. 10.⚖️ 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?
11. 11.❌ Ishaan’s bird-song app was tested on 50 new bird songs and got 42 right. How many did it get wrong?
12. 12.🎯 Ishaan’s bird-song app was tested on 20 new bird songs and got 11 right. What is its accuracy in percent?
13. 13.📋 Planning an AI project: which comes first — train the model or tag each photo by type? (a) train the model (b) tag each photo by type
14. 14.🎯 Rohan’s bird-song app was tested on 50 new bird songs and got 43 right. What is its accuracy in percent?
15. 15.🎯 Ananya’s recycling sorter was tested on 50 new waste photos and got 26 right. What is its accuracy in percent?
16. 16.⚖️ Two recycling sorter models were tested on the same 20 waste photos. Model A got 19 right and Model B got 18 right. How many percentage points more accurate is Model A?
17. 17.❌ Nisha’s spam spotter was tested on 45 new messages and got 41 right. How many did it get wrong?
18. 18.📋 Planning an AI project: which comes first — let it learn patterns or calculate percent right? (a) let it learn patterns (b) calculate percent right
19. 19.📦 Kabir collected 70 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
20. 20.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 14 right and Model B got 13 right. How many percentage points more accurate is Model A?
21. 21.📋 Planning an AI project: which comes first — split train and test or train the model? (a) split train and test (b) train the model
22. 22.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 23 right and Model B got 19 right. How many percentage points more accurate is Model A?
23. 23.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 10 right and Model B got 7 right. How many percentage points more accurate is Model A?
24. 24.📦 Nisha collected 190 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
25. 25.📋 Planning an AI project: which comes first — choose what to sort or try unseen examples? (a) choose what to sort (b) try unseen examples
26. 26.🎯 Nisha’s bird-song app is 70% accurate. If it is tested on 70 new bird songs, how many should it get right?
27. 27.📦 Arjun collected 160 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
28. 28.📦 Kabir collected 90 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
29. 29.🎯 Meera’s spam spotter is 90% accurate. If it is tested on 20 new messages, how many should it get right?
30. 30.❌ Tara’s spam spotter was tested on 20 new messages and got 15 right. How many did it get wrong?
31. 31.🎯 Meera’s bird-song app is 80% accurate. If it is tested on 40 new bird songs, how many should it get right?
32. 32.📋 Planning an AI project: which comes first — choose what to sort or train the model? (a) choose what to sort (b) train the model
33. 33.📋 Planning an AI project: which comes first — pick a question to solve or test on new photos? (a) pick a question to solve (b) test on new photos
34. 34.🎯 Vihaan’s recycling sorter was tested on 4 new waste photos and got 3 right. What is its accuracy in percent?
35. 35.📋 Planning an AI project: which comes first — calculate percent right or correct bad labels? (a) calculate percent right (b) correct bad labels
36. 36.❌ Aarav’s recycling sorter was tested on 29 new waste photos and got 26 right. How many did it get wrong?
37. 37.📋 Planning an AI project: which comes first — set aside test photos or label each example? (a) set aside test photos (b) label each example
38. 38.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 9 right and Model B got 5 right. How many percentage points more accurate is Model A?
39. 39.🎯 Diya’s recycling sorter was tested on 25 new waste photos and got 23 right. What is its accuracy in percent?
40. 40.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 46 right and Model B got 45 right. How many percentage points more accurate is Model A?

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