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. The number of lines of symmetry in a regular pentagon is | 5 |

2. Which vector describes 3 to the left and 4 down | (3,-4) |

3. The value of y=2x-1 when x=3 is | 5 |

4. QR stands for | Quick response |

5. 3x-1=5 has a solution x = | x=2 |

6. The mode of these scores 12,13,15,12,11,10 is | 12 |

7. The mean of these scores 3,4,4,5,6 is | 4.4 |

8. The Median of 12,13,14,15,16,18 is | 14.5 |

9. -3 x 4 is | -12 |

10. 2ax3ab is | 6a^2b |

11. (-2)(-2)(-2) = | -8 |

12. If 8 students have a cat only and 6 have both a cat and a dog and 9 have a dog only, how many have a cat | 14 |

13. A die is rolled 300 times, how many sixes would you expect | 50 |

14. True or False:A skewed histogram has its highest frequency in the middle | False |

15. Find P(7 or 9) | 2/10 |

16. Jennifer quadruples a number and then adds 5. The result is 49.Find the number | 11 |

17. Expand 3(2y-3) | 6y-9 |

18. Solve 7d-12=37 | 7 |

19. If x=8 is the equation 2x+22 =5x-4 True or false | False |

20. Divide $28 in the ratio 4:3 | 16:12 |

21. Which industry were QR codes first used | Automotive |

22. Convert 80mm to cm | 8 |

23. If 4 mangoes cost $6 ,How much for one | $1.50 |

24. If a =5 and b=-7 Find 3b+a | -16 |

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