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. 1. ? + 87 = 100 | 13 |

2. 2. 100 - ? = 40 | 60 |

3. 3. 67 + ? =100 | 33 |

4. 4. The perimeter of a rectangle is 140cm. What could its sides be? | e.g. only 50 + 50 + 20 + 20 |

5. 5. A square has a perimeter of 160cm. What do its sides measure? | 40cm |

6. 6. A length of a square meaures 60cm. What is the perimeter of the square? | 240cm |

7. 7. Draw a rectangle. One of its sides measures 40cm. Another of its sides measures 90cm. What is the perimeter of the rectangle? | 260cm |

8. 8. A book has the following measurements : Length 25cm and its width 10cm. What is the perimeter of the book? | 70cm |

9. 9. 32 + 40 + ? = 100 | 28 |

10. 10. 6 + 7 + 20 + ? = 100 | 67 |

11. 11. A square has a perimeter of 200cm. What do its sides measure? | 50cm |

12. 12. Draw a rectangle. One of its sides measures 20cm. Another of its sides measures 1m. What is the perimeter of the rectangle? | 240cm/2.40m |

13. 13. A length of a square meaures 1.2m. What is the perimeter of the square? | 4.8m/480cm |

14. 14. A door has the following measurements : Length 250cm and its width 100cm. What is the perimeter of the door? | 700cm/7m |

15. 15. The perimeter of a rectangle is 450cm. What could its sides be? | e.g. only 200 + 200 + 25 + 25 |

16. 16. 100= 69 + ? | 31 |

17. 17. 100= 76 + ? | 24 |

18. 18. 100 - ? = 90 | 10 |

19. 19. A pencil case has the following measurements : Length 15cm and its width 5cm. What is the perimeter of the pencil case? | 40cm |

20. 20. 10 + 40 + ? = 100 | 50 |

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