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. 1. What is the value of the 6 in 3,467,520.2? | 60,000 |

2. 2. Write in standard form: 50,000 + 400 + 10 + 4 + 0.06 | 50,414.06 |

3. 3. Write in standard form: sixteen million, thirty-seven thousand, nine hundred twenty and fifteen thousandths | 16,037,920.015 |

4. 4. Give a number that when rounded to the nearest hundredth would be 5.34 | Anything between 5.335 and 5.344 |

5. 5. Stephanie at 16.7oz of ice cream for breakfast and 17.453oz for dinner. How much ice cream did she eat all together? | 34.153oz |

6. 6. Linda had $20. She bought a bag puzzle for $8.75. How much money does she have left? | $11.25 |

7. 7. Solve the equation: (5x4) – (3x4) = h | h=8 |

8. 8. Solve the equation: 7 x (45-36) = g | g=63 |

9. 9. Solve mentally: 4,000 x 800=c | c=3,200,000 |

10. 10. Solve mentally: 60 x 100 = b | b=6,000 |

11. 11. Solve mentally: 18,000 / 600 = k | k=30 |

12. 12. Solve mentally: 240,000 / 30 = z | z=8,000 |

13. 13. Carl bought a box of Legos for $15 and 3 bouncy balls for $5.00 each. How much did Carl spend all together? | $30.00 |

14. 14. Estimate: 6.427 + 8.3 | 14 |

15. 15. A concert played three nights in a row. The first night they sold 14,567 tickets. The second night, they sold 23,493 tickets, and the last night they sold 17,493 tickets. How many tickets did they sell all together? | 55,553 tickets |

16. 16. The record for most pickles eaten in one year is 63,495 pickles. So far this year, Olivia has eaten 43,549 pickles. How many more pickles will she need to eat to reach the record? | 19,946 pickles. |

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