Detailed Case Study Search the Archive Feedback

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.

4. Cut them out and place them around your class / school.

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

## Question | ## Answer |

1. List the factors of 12 | 1, 2, 3, 4, 6, 12 |

2. List the first 3 multiples of 11 | 11, 22, 33 |

3. List the first 5 prime numbers | 2, 3, 5, 7, 11 |

4. Find the HCF of 9 and 15 | 3 |

5. Find the LCM of 15 and 30 | 15 |

6. Find the HCF of 24 and 32 | 8 |

7. Find the LCM of 30 and 50 | 150 |

8. Find the HCF of 16 and 32 | 16 |

9. 32 x 51 | 1632 |

10. 238 divided by 7 | 34 |

11. 0.3 x 0.5 | 0.15 |

12. 50% of 120 | 60 |

13. 10% of 730 | 73 |

14. 5% of 140 | 7 |

15. 1% of 172 | 1.72 |

16. 25% of 320 | 80 |

17. 75% of 80 | 60 |

18. 2 squared | 4 |

19. Square root of 25 | 5 |

20. 9 squared add 8 squared | 81 + 64 = 145 |

21. 14504 - 1736 | 12768 |

22. What is the value of the 6 in 35683 | 600 |

23. If 4 bars of chocolate cost £1.20, how much do 1 cost? | 30p |

24. Round 568 to the nearest 100 | 600 |

25. Round 8.34 to 1 decimal place | 8.3 |

26. Find 3/5 of 25 | 15 |

27. Find 7/9 of 63 | 49 |

28. Write 23% as a decimal | 0.23 |

29. Write 75% as a fraction | 3/4 |

30. Convert 60% into a fraction | 60/100 or 6/10 or 3/5 |

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