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. What is the 10th term in this sequence: 2, 0, -2,...? | -16 |

2. What is double 15.5? | 31 |

3. How many seconds are there in one day? | 86,400 |

4. Calculate the difference between three hundred and sixty-seven and four hundred and eighty-one. | 114 |

5. Make 24 using the numbers 2,5,6,9. You can add, subtract, multiply and divide. All four numbers must be used. | 6/2 = 3 x 5 = 15 + 9 = 24 |

6. Dave scored 5 out of 10 shots from the three-point line. What was his free throw percentage? | 50% |

7. How many hours are there in three days? | 72 |

8. What is the next number in the sequence: 0,1,1,2,3,5,8,...? | 13 |

9. A car park charges 15p for 8 minutes. How much will it cost to park for 40 minutes? | 75p |

10. The 13:35 train from Paddington takes four hours and 26 minutes to get to Redruth. What time does it get to Redruth? | 18:01 |

11. In New York, the temperature was -2 degrees celsius. In Atlanta it was 7 degrees warmer. What was the temperature in Atlanta? | 5 degrees celsius |

12. What is the name for an angle that is bigger than 90 degrees but smaller than 180 degrees? | Obtuse |

13. What number does “giga” stand for? | 1 billion |

14. How many days are there in July? | 31 |

15. Find three consecutive numbers that add up to 45? | 14,15,16 |

16. Multiply three cubed by the square root of 9. | 81 |

17. I scored 16 out of 25 in a test. What percentage is this? | 64% |

18. How many edges has a cube? | 12 |

19. Work out the answer to 6 x 5 x 3 x 2 x 1 x 0. | 0 |

20. I think of a number. I add 5 to it, then multiply by 3. My answer is 39. What number did I think of? | 8 |

21. A boy spent his pocket money of £20 on magazines and snacks in the ratio 3:2. How much did he spend on snacks? | £8 |

22. If six pencils cost 78p, how much would 8 pencils cost? | £1.04 |

23. In Roman Numerals, what is the number 5? | V |

24. What is 9:20pm in the 24-hour clock? | 21:20 |

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