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. 58 x 49 = | 2,842 |

2. Write the number 54,678 in word form. | fifty-four thousand, six hundred seventy-eight |

3. Write 369,521 in expanded form. | 300,000+60,000+9,000+500+20+1 |

4. 100 less than 5,432 | 5,332 |

5. 23,589 + 14,657= | 38,246 |

6. This is an example of what property? (9+4)+2=(2+4)+9 | Associative Property of Addition |

7. (234+156)+35= | 425 |

8. Round 63,587 to the nearest hundred. | 63,600 |

9. Write two thousand, four hundred six in stardard form. | 2,406 |

10. 902 - 587= | 315 |

11. Find the mistake 42,874 is greater than 402,874 | greater than sould be less than |

12. 400-124+87+e= 560 | e=137 |

13. 150-98-12= | 40 |

14. (43 x 4)+(32 x 3)= | 268 |

15. What is the answer to a multiplication problem called? | product |

16. What is the answer to an addition problem called? | sum |

17. If a question asks you to find the difference, what operation should you use? | subtraction |

18. 44 x 6= | 264 |

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