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. Find a number less 100 which is a perfect square and the sum of its digits is an even number. | 64 |

2. | |

3. The face + opposite face value of a six-sided dice is 7. What is the face + opposite face value of a ten-sided dice? | 11 |

4. | |

5. The angles of a triangle are in the ratio 2:3:5. What is the difference between the largest angle and the smallest angle? | 54 |

6. | |

7. The time is 01:01. How many minutes have passed when the clock reads 10:10? | 549 |

8. | |

9. Find the five consecutive numbers that add to 1000. | 198, 199, 200, 201, 202 |

10. | |

11. I have lived for approximately half a million hours. What decade of my life am I in? | 6th |

12. | |

13. If a = 26, b = 25, and so on, what is the word-sum of apple? | 85 |

14. | |

15. There are 28 pieces in a double-six set of dominoes. How many blank-halves are there? | 8 |

16. | |

17. A square is drawn with vertices on these coordinates: (2, 4), (5, 4), (5, 1), (2, 1). What is the area of this square? | 9 |

18. | |

19. To find the diameter in mm of a knitting needle, you multiply the size by 0.3 and add 2.1. If the diameter in mm is 3.6 what is the size? | 5 |

20. | |

21. A x B = 3127. A and B are both prime number less than 60. What is the difference between A and B? | 6 |

22. | |

23. Two 6-sided dice are thrown and the results may be added, subtracted, divided or multiplied. What even number less than 20 is not a possible outcome? | 14 |

24. | |

25. I think of an odd number. It has three digits. All the digits are different and add up to 12. The difference between the first two digits equals the difference between the last two digits, what is the middle digit? | 4 |

26. | |

27. If I buy a prepaid bus card for $60, I get 20 rides. Without the card each ride would cost me $3.80. What is the percentage decrease if I buy a bus card? | 21% |

28. | |

29. A cube has other identical cubes attached to each of its faces. The volume of this figure is 56cm3. What is the total surface area of this figure? | 120 |

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