Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 132 · 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 bird-song app models were tested on the same 25 bird songs. Model A got 17 right and Model B got 14 right. How many percentage points more accurate is Model A?
2. 2.🧪 What is accuracy? (a) total × 2 (b) total − correct (c) correct ÷ total × 100 (d) correct + total
3. 3.📋 Planning an AI project: which comes first — choose what to sort or improve data, retest? (a) choose what to sort (b) improve data, retest
4. 4.🎯 Ananya’s leaf identifier was tested on 50 new leaf photos and got 28 right. What is its accuracy in percent?
5. 5.❌ Ananya’s spam spotter was tested on 41 new messages and got 35 right. How many did it get wrong?
6. 6.🎯 Aarav’s handwriting reader is 50% accurate. If it is tested on 20 new handwritten letters, how many should it get right?
7. 7.❌ Meera’s leaf identifier was tested on 37 new leaf photos and got 28 right. How many did it get wrong?
8. 8.📋 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
9. 9.📋 Planning an AI project: which comes first — pick a question to solve or correct bad labels? (a) pick a question to solve (b) correct bad labels
10. 10.📦 Aarav collected 160 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 — correct bad labels or label each example? (a) correct bad labels (b) label each example
12. 12.🧪 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
13. 13.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 9 right and Model B got 5 right. How many percentage points more accurate is Model A?
14. 14.📋 Planning an AI project: which comes first — split train and test or fix it and test again? (a) split train and test (b) fix it and test again
15. 15.🎯 Tara’s leaf identifier was tested on 5 new leaf photos and got 3 right. What is its accuracy in percent?
16. 16.❌ Aarav’s bird-song app was tested on 49 new bird songs and got 47 right. How many did it get wrong?
17. 17.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) fewer examples (c) more labelled examples (d) a new colour screen
18. 18.📋 Planning an AI project: which comes first — try unseen examples or train the model? (a) try unseen examples (b) train the model
19. 19.📋 Planning an AI project: which comes first — recheck every label or test on new photos? (a) recheck every label (b) test on new photos
20. 20.📋 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
21. 21.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 50 right and Model B got 46 right. How many percentage points more accurate is Model A?
22. 22.🎯 Vihaan’s bird-song app was tested on 25 new bird songs and got 17 right. What is its accuracy in percent?
23. 23.❌ Rohan’s spam spotter was tested on 42 new messages and got 39 right. How many did it get wrong?
24. 24.🎯 Meera’s handwriting reader is 60% accurate. If it is tested on 50 new handwritten letters, how many should it get right?
25. 25.📋 Planning an AI project: which comes first — split train and test or test on new photos? (a) split train and test (b) test on new photos
26. 26.📦 Saanvi collected 130 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
27. 27.📋 Planning an AI project: which comes first — work out the accuracy or test on new photos? (a) work out the accuracy (b) test on new photos
28. 28.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 17 right and Model B got 14 right. How many percentage points more accurate is Model A?
29. 29.📦 Arjun collected 60 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
30. 30.🧪 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
31. 31.🎯 Rohan’s handwriting reader is 60% accurate. If it is tested on 100 new handwritten letters, how many should it get right?
32. 32.🎯 Nisha’s handwriting reader is 70% accurate. If it is tested on 60 new handwritten letters, how many should it get right?
33. 33.📦 Ishaan collected 50 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
34. 34.❌ Nisha’s leaf identifier was tested on 26 new leaf photos and got 18 right. How many did it get wrong?
35. 35.❌ Meera’s leaf identifier was tested on 39 new leaf photos and got 37 right. How many did it get wrong?
36. 36.📋 Planning an AI project: which comes first — let it learn patterns or work out the accuracy? (a) let it learn patterns (b) work out the accuracy
37. 37.📋 Planning an AI project: which comes first — tag each photo by type or collect fruit photos? (a) tag each photo by type (b) collect fruit photos
38. 38.📋 Planning an AI project: which comes first — fix it and test again or work out the accuracy? (a) fix it and test again (b) work out the accuracy
39. 39.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 16 right and Model B got 15 right. How many percentage points more accurate is Model A?
40. 40.📋 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

Free ai for students lessons, practice and worksheets at talentjr.in/ai-for-students