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 sum is the answer to what operation? | addition |

2. | |

3. About 3/10 of the Earth’s surface is covered by land, and the rest is water. What fraction of Earth’s surface is covered by water? | 7/10 |

4. | |

5. A recipe calls for 3/8 cup of chocolate chips and 1 ½ cups of walnuts. Tameka wants to double the recipe. How many cups of chocolate chips and walnuts will she use? | 3/4 and 3 |

6. | |

7. Josh lives 21 miles from work. If his mother drives him ⅔ of the way, how much further will Josh have to walk to get to work? | 7 |

8. | |

9. The product is the answer to what operation? | multiplication |

10. | |

11. Mr. Williams bought seven bags of flour. He used ½ of the total amount of flour on Monday and 1 ¼ bags of flour on Tuesday. How much flour does he have left? | 2 1/4 |

12. | |

13. Heather bought 3 ½ pounds of grapes and 2 ¾ pounds of cherries. How much more did the grapes weigh? | 3/4 |

14. | |

15. Each member of the art club must contribute at least ¾ of the $200 expense toward a trip to New York City. How much does each member have to pay? | 75 |

16. | |

17. Mike had 9 cases of juice. He used 5 ¾ cases at the picnic. How many cases of juice does he have left? | 3 1/4 |

18. | |

19. Chef Leo bought 1 ½ pints of strawberries. He used ¾ of a pint to make tarts. How many tarts can she make from the strawberries? | 2 |

20. | |

21. The quotient is the answer to what operation? | division |

22. | |

23. A maple tree is 12 ¾ feet taller than a building. If the building is 50 ½ feet at its peak, how tall is the maple tree? | 63 1/4 |

24. | |

25. Ned walked 2 ⅞ miles from his house to Tony’s house. Then Ned and Tony walked 1 ½ miles to Eugene’s house. How far did Ned walk altogether? | 4 3/8 |

26. | |

27. Last night Laura worked on her homework for 1/2 an hour before dinner and then 1 and 1/4 hours after dinner. How long did she work on homework in all? | 1 3/4 |

28. | |

29. A cereal box contains 20 ounces, how many 1 and 3/4 ounce servings fit in the box? | 11 3/4 |

30. | |

31. At Ihop, each pancake is 3/7 an inch high. If I stack 8 pancakes together,how many inches tall will it be? | 3 3/8 |

32. | |

33. The difference is the answer to what operation? | subtraction |

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