Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 983 · 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.🎯 Diya’s handwriting reader is 50% accurate. If it is tested on 90 new handwritten letters, how many should it get right?
2. 2.❌ Rohan’s recycling sorter was tested on 48 new waste photos and got 41 right. How many did it get wrong?
3. 3.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to save paper (c) to make it bigger (d) to see if it learned
4. 4.🎯 Tara’s leaf identifier was tested on 20 new leaf photos and got 13 right. What is its accuracy in percent?
5. 5.🎯 Ishaan’s bird-song app was tested on 5 new bird songs and got 3 right. What is its accuracy in percent?
6. 6.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 25 right and Model B got 24 right. How many percentage points more accurate is Model A?
7. 7.❌ Vihaan’s recycling sorter was tested on 20 new waste photos and got 16 right. How many did it get wrong?
8. 8.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) fewer examples (c) a new colour screen (d) a louder speaker
9. 9.📋 Planning an AI project: which comes first — set aside test photos or correct bad labels? (a) set aside test photos (b) correct bad labels
10. 10.🎯 Diya’s leaf identifier was tested on 5 new leaf photos and got 5 right. What is its accuracy in percent?
11. 11.📋 Planning an AI project: which comes first — collect fruit photos or tag each photo by type? (a) collect fruit photos (b) tag each photo by type
12. 12.📋 Planning an AI project: which comes first — improve data, retest or gather many examples? (a) improve data, retest (b) gather many examples
13. 13.📦 Ishaan collected 140 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
14. 14.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 44 right and Model B got 36 right. How many percentage points more accurate is Model A?
15. 15.📦 Saanvi collected 150 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
16. 16.❌ Kabir’s fruit sorter was tested on 45 new fruit photos and got 40 right. How many did it get wrong?
17. 17.🧪 What is accuracy? (a) total × 2 (b) correct + total (c) correct ÷ total × 100 (d) total − correct
18. 18.🎯 Nisha’s bird-song app is 50% accurate. If it is tested on 90 new bird songs, how many should it get right?
19. 19.🎯 Ananya’s bird-song app was tested on 4 new bird songs and got 3 right. What is its accuracy in percent?
20. 20.🎯 Ananya’s leaf identifier is 70% accurate. If it is tested on 30 new leaf photos, how many should it get right?
21. 21.📦 Tara collected 90 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
22. 22.📦 Saanvi collected 90 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
23. 23.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 35 right and Model B got 33 right. How many percentage points more accurate is Model A?
24. 24.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
25. 25.📋 Planning an AI project: which comes first — tag each photo by type or train the model? (a) tag each photo by type (b) train the model
26. 26.📦 Diya collected 180 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
27. 27.📋 Planning an AI project: which comes first — recheck every label or try unseen examples? (a) recheck every label (b) try unseen examples
28. 28.🎯 Meera’s leaf identifier is 90% accurate. If it is tested on 30 new leaf photos, how many should it get right?
29. 29.📋 Planning an AI project: which comes first — work out the accuracy or try unseen examples? (a) work out the accuracy (b) try unseen examples
30. 30.📋 Planning an AI project: which comes first — train the model or pick a question to solve? (a) train the model (b) pick a question to solve
31. 31.📋 Planning an AI project: which comes first — train the model or try unseen examples? (a) train the model (b) try unseen examples
32. 32.📦 Nisha collected 180 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
33. 33.🎯 Kabir’s bird-song app was tested on 10 new bird songs and got 5 right. What is its accuracy in percent?
34. 34.📋 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
35. 35.🎯 Tara’s bird-song app was tested on 20 new bird songs and got 10 right. What is its accuracy in percent?
36. 36.📋 Planning an AI project: which comes first — set aside test photos or recheck every label? (a) set aside test photos (b) recheck every label
37. 37.🎯 Diya’s handwriting reader was tested on 5 new handwritten letters and got 3 right. What is its accuracy in percent?
38. 38.📋 Planning an AI project: which comes first — tag each photo by type or split train and test? (a) tag each photo by type (b) split train and test
39. 39.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 50 right and Model B got 49 right. How many percentage points more accurate is Model A?
40. 40.🎯 Vihaan’s spam spotter is 90% accurate. If it is tested on 10 new messages, how many should it get right?

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