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. Which pair of signs could go in the blanks to make this equation true? 14 ____ 3 = 3 _____ 14 | +,+ |

2. If m + n = 46, then what is the value of n + m? | 46 |

3. Which number comes next in the pattern? 40, 30, 21, 13, 6, … | 0 |

4. Franklin wants to score 100 on his math test. He scored 82 on the first test, 85 on the second test, and 88 on the third test. If this pattern continues, on which test will Franklin score 100? | seventh |

5. Each term in this pattern is an expression. What is the next term in this expression? n x 2, n x 4, n x 8, n x 16, …. | n x 32 |

6. A store sells new and used DVDs. Buying a new DVD costs 4 times as much as buying the same DVD used. Let n stand for the cost, in dollars, of a used DVD. If a new DVD costs $16, which equation best represents this situation? | 4n=16 |

7. Julia is buying decorations for the school dance. One bag of balloons b, costs $2. At most, Julia can spend $10 on balloons. Which inequality could represent the number of bags of balloons she can buy? | 2b<16 |

8. Solve: 11 = p-20 | p=31 |

9. Solve: 84 = 7d | d=12 |

10. What is the additive inverse for -3? | 3 |

11. How would you solve the equation x/4 = 5 for x? | Multiply both sides by 4 |

12. Which expression is equal to 2^4? | 2 x 2 x 2 x 2 |

13. Which expression is equal to 4^5? | 4 x 4 x 4 x 4 x 4 |

14. The classroom is a square with a side length of 13 feet and an area of 169 square feet. How can you write the area in exponential form? | 13^2 |

15. Use the order of operations to simplify. 22 - 6 ÷ 2 + 3 | 22 |

16. Which is the correct order of operations? | PEMDAS |

17. Use the order of operations to simplify. 15 ÷ (5 – 2) + 8 | 13 |

18. Write 100,000,000 as a power of 10 | 10^8 |

19. Is -2 an integer? | Yes |

20. Is 1/2 an integer? | No |

21. Name a positive or negative integer to represent spending $35 | 35 |

22. Write 10x10x10 as a power of 10 | 10^3 |

23. Write 10,000 as a power of 10 | 10^4 |

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