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. 1/4 of peanut products in the US is used for candy and confections. Change 1/4 to a decimal. | 0.25 |

2. Peanuts account for 2/3 to a decimal. Change 2/3 to a decimal. | 0.6 repeating |

3. 90% of parents admit to sneaking goodies from their kids’ Halloween trick-or-treat bags. Change 90% to a fraction in simplest form. | 9/10 |

4. 0.3 of kids report that they sort their candy after returning home from trick-or-treating. Change 0.3 to a fraction. | 3/10 |

5. 7/10 of consumers will purchase candy/treats AFTER Halloween is over. Change 7/10 to a decimal. | 0.7 |

6. 0.46 of American adults carve a pumpkin for Halloween. Change 0.46 to a fraction in simplest form. | 23/50 |

7. Bats make up 1/5 of the mammal population. Change 1/5 to a decimal. | 0.2 |

8. Nearly 40% of American bat species are in severe decline or already listed as endangered or threatened. Change 40% to a fraction in simplest form. | 2/5 |

9. Seven-tenths of bats consume insects, sharing a large part of natural pest control. Change 7/10 to a decimal. | 0.7 |

10. Thirty-seven percent of American adults feel zombies would do a better job running the country than the federal government. Change 37% to a fraction in simplest form. | 37/100 |

11. Only 3/50 of all Americans anticipate a zombie apocalypse. Change 3/50 to a decimal. | 0.06 |

12. 41/100 of Americans nationwide say they have watched a movie like “World War Z” or a TV show like “The Walking Dead” about a zombie apocalypse. Change 41/100 to a decimal. | 0.41 |

13. Pumpkins are 90% water. Change 90% to a fraction in simplest form. | 9/10 |

14. Arachnophobia is a fear of spiders. It is one of the most common fears in the world. It affects approximately 10% of men and 50% of women. The severity of the fear can vary. Change both percents to fractions in simplest form. | 1/10 and 1/2 |

15. Most household spiders come from the fact that most people don’t properly wash their new clothing after purchase. Nine tenths of clothing purchased at retail stores contain spider eggs laid during shipment. Change 9/10 to a decimal. | 0.9 |

16. The moon rotates on its axis in around the same length of time it takes to orbit the Earth. This means that from Earth we only ever see around 60% of its surface (fifty percent at one time). Change 60% to a fraction in simplest form. | 3/5 |

17. The effect of gravity is only about 1/5 as strong on the surface of the Moon compared to the strength of gravity on the surface of the Earth. Change 1/5 to a decimal. | 0.2 |

18. Four tenths of the total number of birds in the world are regular migrants. Change 0.4 to a fraction in simplest form. | 2/5 |

19. 0.73 of adolescents who reported feeling unhappy, sad, or depressed also reported not getting enough sleep at night and being excessively tired during the day. Change 0.73 to a fraction in simplest form. | 73/100 |

20. A survey of teens discovered only 0.2 got the recommended eight or more hours of sleep during school nights. Change 0.2 to a fraction in simplest form. | 1/5 |

21. Eight-two percent of both middle and high school students said they woke up tired and unrefreshed. Change 0.82 to a fraction in simplest form. | 41/50 |

22. Nine-tenths of pumpkins grown in the USA are raised within a 90-mile radius of Peoria, Illinois. Change 0.9 to a fraction in simplest form. | 9/10 |

23. Libby’s® pumpkin processing plant in Morton, Illinois cans more than 17/20 of the world’s pumpkins each year. Change 17/20 to a decimal. | 0.85 |

24. Pumpkins can be grown on 6/7 of the world’s continents. Change 6/7 to a decimal. Round to the nearest hundredth. | 0.86 |

25. Four-fifths of the pumpkin supply in the USA is available in October. Change 4/5 to a decimal. | 0.8 |

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