Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 112 · 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.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
2. 2.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 8 right and Model B got 7 right. How many percentage points more accurate is Model A?
3. 3.🧪 You can plan a simple AI project with… (a) only a big robot (b) nothing at all (c) a secret password (d) paper and examples
4. 4.🎯 Diya’s bird-song app was tested on 20 new bird songs and got 10 right. What is its accuracy in percent?
5. 5.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it bigger (c) to see if it learned (d) to make it faster
6. 6.📋 Planning an AI project: which comes first — split train and test or recheck every label? (a) split train and test (b) recheck every label
7. 7.📋 Planning an AI project: which comes first — train the model or fix it and test again? (a) train the model (b) fix it and test again
8. 8.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
9. 9.📋 Planning an AI project: which comes first — calculate percent right or set aside test photos? (a) calculate percent right (b) set aside test photos
10. 10.📦 Kabir collected 70 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
11. 11.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
12. 12.📋 Planning an AI project: which comes first — fix it and test again or gather many examples? (a) fix it and test again (b) gather many examples
13. 13.📋 Planning an AI project: which comes first — let it learn patterns or test on new photos? (a) let it learn patterns (b) test on new photos
14. 14.🧪 What is accuracy? (a) correct + total (b) total − correct (c) correct ÷ total × 100 (d) total × 2
15. 15.🧪 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
16. 16.🎯 Arjun’s fruit sorter is 80% accurate. If it is tested on 60 new fruit photos, how many should it get right?
17. 17.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 7 right and Model B got 6 right. How many percentage points more accurate is Model A?
18. 18.❌ Nisha’s bird-song app was tested on 34 new bird songs and got 27 right. How many did it get wrong?
19. 19.📦 Tara collected 90 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
20. 20.📋 Planning an AI project: which comes first — test on new photos or correct bad labels? (a) test on new photos (b) correct bad labels
21. 21.📋 Planning an AI project: which comes first — collect fruit photos or choose what to sort? (a) collect fruit photos (b) choose what to sort
22. 22.🎯 Diya’s handwriting reader was tested on 25 new handwritten letters and got 18 right. What is its accuracy in percent?
23. 23.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
24. 24.📦 Diya collected 170 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
25. 25.🎯 Ananya’s fruit sorter was tested on 10 new fruit photos and got 6 right. What is its accuracy in percent?
26. 26.📦 Diya collected 160 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
27. 27.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 6 right. How many percentage points more accurate is Model A?
28. 28.🎯 Arjun’s recycling sorter is 60% accurate. If it is tested on 40 new waste photos, how many should it get right?
29. 29.🎯 Tara’s fruit sorter was tested on 25 new fruit photos and got 23 right. What is its accuracy in percent?
30. 30.🎯 Nisha’s fruit sorter is 70% accurate. If it is tested on 20 new fruit photos, how many should it get right?
31. 31.📋 Planning an AI project: which comes first — test on new photos or gather many examples? (a) test on new photos (b) gather many examples
32. 32.📋 Planning an AI project: which comes first — train the model or try unseen examples? (a) train the model (b) try unseen examples
33. 33.🎯 Saanvi’s handwriting reader is 60% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
34. 34.📋 Planning an AI project: which comes first — train the model or set aside test photos? (a) train the model (b) set aside test photos
35. 35.📋 Planning an AI project: which comes first — collect fruit photos or train the model? (a) collect fruit photos (b) train the model
36. 36.🎯 Nisha’s handwriting reader is 80% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
37. 37.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 8 right and Model B got 7 right. How many percentage points more accurate is Model A?
38. 38.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 47 right and Model B got 46 right. How many percentage points more accurate is Model A?
39. 39.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 24 right and Model B got 22 right. How many percentage points more accurate is Model A?
40. 40.📦 Aarav collected 160 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?

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