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 Scientific Notation? | a way of expressing numbers that are too big or too small to be conveniently written in decimal form |

2. Click the following link to know the steps of scientific notation. | identify the number. Then place a decimal point in a location which would make a number between 1 and 9. Then count the number of place values that the decimal point was moved. Lastly, plug the numbers into the following formula. |

3. Can you change 7.921 x 108 to its regular notation? | 7.92100000 |

4. There are 8.2x10^5 microbes in a petri dish. If there are a total of 7.3x10^11 petri dishes in the lab, how many microbes are in the lab? | 9856x10^16 |

5. Express this number in scientific notation 8.235 x 10^-10 | 0.00000000008235 |

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