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. Two numbers with the same absolute value but different signs. The sum of opposites is zero. | opposites |

2. Two numbers that are opposite each other. Their sum is zero. | Additive inverse - |

3. A mathematical sentence that contains an equal sign. = | Equation - |

4. find the values of the variable that makes the equation true. | solve |

5. THE value for the variable that makes an equation true. | solution |

6. operations that “undo” one another | inverse operation |

7. numbers that can be written as fractions. Includes all integers, fractions and mixed numbers. | rational number |

8. when division is computed and the division ends or terminates. | terminating decimal |

9. if the division does not end and a pattern of digits repeats | repeating decimal |

10. two factors with a product of 1, also known as reciprocals | multiplicative inverse |

11. two factors with a product of 1, also known as multiplicative inverse | reciprocals |

12. A number written with the bottom part (the denominator) telling you how many parts the whole is divided into, and the top part (the numerator) telling how many you have. | fraction |

13. the top number of a fraction | numerator |

14. the bottom number of a fraction | denominator |

15. number written using exponents | power |

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