Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 22 · 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.📦 Tara collected 70 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
2. 2.❌ Rohan’s fruit sorter was tested on 38 new fruit photos and got 34 right. How many did it get wrong?
3. 3.🎯 Diya’s fruit sorter was tested on 5 new fruit photos and got 3 right. What is its accuracy in percent?
4. 4.🧪 What is accuracy? (a) total − correct (b) total × 2 (c) correct ÷ total × 100 (d) correct + total
5. 5.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) fewer examples (c) more labelled examples (d) a louder speaker
6. 6.🎯 Vihaan’s bird-song app is 80% accurate. If it is tested on 10 new bird songs, how many should it get right?
7. 7.🧪 You can plan a simple AI project with… (a) nothing at all (b) a secret password (c) paper and examples (d) only a big robot
8. 8.🎯 Aarav’s leaf identifier is 80% accurate. If it is tested on 60 new leaf photos, how many should it get right?
9. 9.📦 Arjun collected 40 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
10. 10.📋 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
11. 11.📋 Planning an AI project: which comes first — collect fruit photos or work out the accuracy? (a) collect fruit photos (b) work out the accuracy
12. 12.🧪 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
13. 13.📋 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
14. 14.❌ Tara’s leaf identifier was tested on 11 new leaf photos and got 10 right. How many did it get wrong?
15. 15.❌ Rohan’s fruit sorter was tested on 30 new fruit photos and got 26 right. How many did it get wrong?
16. 16.📦 Ananya collected 110 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
17. 17.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 25 right and Model B got 18 right. How many percentage points more accurate is Model A?
18. 18.🎯 Rohan’s spam spotter was tested on 10 new messages and got 10 right. What is its accuracy in percent?
19. 19.📋 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
20. 20.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
21. 21.📋 Planning an AI project: which comes first — split train and test or let it learn patterns? (a) split train and test (b) let it learn patterns
22. 22.📋 Planning an AI project: which comes first — choose what to sort or fix it and test again? (a) choose what to sort (b) fix it and test again
23. 23.📋 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
24. 24.🎯 Vihaan’s handwriting reader is 70% accurate. If it is tested on 100 new handwritten letters, how many should it get right?
25. 25.🎯 Ananya’s fruit sorter is 90% accurate. If it is tested on 20 new fruit photos, how many should it get right?
26. 26.🎯 Vihaan’s handwriting reader was tested on 4 new handwritten letters and got 3 right. What is its accuracy in percent?
27. 27.📦 Kabir collected 140 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
28. 28.📋 Planning an AI project: which comes first — fix it and test again or try unseen examples? (a) fix it and test again (b) try unseen examples
29. 29.❌ Kabir’s handwriting reader was tested on 29 new handwritten letters and got 21 right. How many did it get wrong?
30. 30.📋 Planning an AI project: which comes first — improve data, retest or set aside test photos? (a) improve data, retest (b) set aside test photos
31. 31.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 42 right and Model B got 25 right. How many percentage points more accurate is Model A?
32. 32.🎯 Diya’s fruit sorter was tested on 20 new fruit photos and got 13 right. What is its accuracy in percent?
33. 33.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 46 right and Model B got 44 right. How many percentage points more accurate is Model A?
34. 34.❌ Tara’s handwriting reader was tested on 22 new handwritten letters and got 15 right. How many did it get wrong?
35. 35.🎯 Ananya’s spam spotter was tested on 25 new messages and got 14 right. What is its accuracy in percent?
36. 36.🎯 Rohan’s recycling sorter is 90% accurate. If it is tested on 90 new waste photos, how many should it get right?
37. 37.🎯 Nisha’s spam spotter was tested on 25 new messages and got 20 right. What is its accuracy in percent?
38. 38.🎯 Rohan’s bird-song app is 90% accurate. If it is tested on 40 new bird songs, how many should it get right?
39. 39.📦 Rohan collected 130 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
40. 40.📋 Planning an AI project: which comes first — improve data, retest or pick a question to solve? (a) improve data, retest (b) pick a question to solve

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