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. 100-100 | 0 |

2. 5X5 | 25 |

3. 77.2 - 43.778 | 33.442 |

4. 4.23 × 9 | 38.07 |

5. 19.2 + 31.82 | 51.02 |

6. 0.468 ÷ 6.5 | 0.072 |

7. 48 + 58.1 | 106.1 |

8. Is 31 prime or composite | prime |

9. Is 42 prime or composite | composite |

10. Is 59 prime or composite | prime |

11. What is the greatest common factor of 42 and 6 | 6 |

12. What is the greatest common factor of 20 and 30 | 10 |

13. What is the area of a square with a side length of 3cm | 9cm |

14. What is the perimeter of a square with a side length of 4in | 16in |

15. 3+(5+6+9)+7 | 30 |

16. (5+36÷4)+4÷2 | 16 |

17. Round 234.343 to the nearest hundredth | 234.34 |

18. Round 234.343 to the nearest hundred | 200 |

19. Round 1.0017 to the nearest tenth | 1.0 |

20. Round 1.0017 to the nearest hundredth | 1.00 |

21. Round 1.0017 to the nearest thousandth | 1.002 |

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