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 digit in the ones place is 72 divided by 9 | 8 |

2. Seventy thousand, three hundred twenty-four is greater than/less than/equal to 67,543 | greater than |

3. 700,000+ 800 + 20 +8 is greater than/less than/equal to 790,28 | greater than |

4. The digit in the hundreds place is how many days are in a weekend | 2 |

5. 902,780 is greater than/less than/equal to 90,000 + 2,000 + 70 + 8 | greater than |

6. 60,000 + 300 + 20 + 7 is greater than/less than/equal to Three hundred thousand, seventy-nine | less than |

7. what standard form number is equal to Thirty-three thousand, six hundred and twenty thousandths | 33,600.2 |

8. The digit in the thousandths place is 42 divided by 6 | 7 |

9. Five hundred thirty-two thousand, one hundred ten is greater than/less than/equal to 500,000 + 30 + 2 | greater than |

10. 0.031 is greater than/less than/equal to thirty three hundredths | less than |

11. 1.293 is greater than/less than/equal to 1+0.2+0.08+0.009 | greater than |

12. nine hundred thirty-three thousandths is greater than/less than/equal to 0.8+0.05+0.008 | less than |

13. The digit in the tenths place is number of Great Expectations we have | 8 |

14. ten and three hundred eighty-nine thousandths is greater than/less than/equal to 10+0.3+0.04+0.007 | greater than |

15. Five swimmers are entered into a competition. Four of the swimmers have had their turns. Their scores are 9.8 s, 9.75 s, 9.79 s, and 9.81 s. What score must the last swimmer get in order to win the competition? | 9.74 |

16. To make a miniature ice cream truck, you need tires with a diameter between 1.465 cm and 1.472 cm. Will a tire that is 1.469 cm in diameter work? Explain why or why not. | yes |

17. The digit in the hundredths place is the number of specials we have | 3 |

18. Ellen wanted to buy the following items: A DVD player for $49.95, a DVD holder for $19.95 and a personal stereo for $21.95. Does Ellen have enough money to buy all three items if she has $90 with her? | vary |

19. the digit in the tens place is 35 divided by 7 | 5 |

20. Melissa purchased $39.46 in groceries at a store. The cashier gave her $1.46 in change from a $50 bill. Melissa gave the cashier an angry look. What did the cashier do wrong? | wrong change |

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