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. What is the plural of calculus? | calculi |

2. Calculus is Latin for_____ | pebble |

3. Why do you rarely see mathematicians at the beach? | because they already have sine and cosine to get a tan and don't need the sun! |

4. What do you get if you divide the circumference of a jack-o-lantern by its diameter? | Pumpkin Pi! |

5. What does the zero say to the eight? | Nice belt! |

6. What type of function models population growth? | exponential |

7. What type of function models sound waves? | trigonometric |

8. How many different types of conic sections are there? | four |

9. What type of function models a ball being thrown in the air? | quadratic |

10. What type of function models the distance from a set point? | absolute value |

11. The universe is expanding at a rate ____ percent faster than originally predicted. | 9 |

12. What is 111,111,111 times 111,111,111? | 12,345,678,987,654,321 |

13. What is the volume of a pizza with radius Z and thickness A? | PiZZA |

14. Which ancient civilization did math with base 60 instead of base 10 so that we have 60 seconds in a minute and 360 degrees in a circle? | Babylonians |

15. Studies show that students doing this have better test scores. | chewing gum |

16. What is the smallest number that can be evenly divided by all numbers 1-10? | 2,520 |

17. In a group of 23 people, there is a ____ percent chance than at least two of them will have the same birthday | 50 |

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