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## A. Prior to the lesson:

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.

## B. The lesson:

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!

## C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

### Answer

1. Base 10Base 10
2. Ano ang tawag sa malaking sapatos? Sagot: Palashoe1
3. You do note that the liar is ma peyk!1
4. Example: 7ADFHex
5. Range: 0-90-9
6. Number System: HexadecimalHexadecimal
7. Base 2Base 2
8. Si optimus prime ay isang magiting na lider ng autobots. Sya ay naghahanap ng mga bagong kasama. Ipasa mo to sa 8 kaibigan at ikaw ay magiging transformers, wag kang tumawa, yung tropa ko, naging tricycle na1
9. Base 8Base 8
10. Nakakatuwa na may nagbabasang unggoy.1
11. Base in Math1
12. Number System: BinaryBinary
13. Range 0-9, A-FHexa
14. Base 16Base 16
15. Range: 0,10,1
16. Cassie! Go to your room!1
17. Range: 0-70-7
18. Base Friend1
19. Number System: DecimalDecimal
20. Example: 10100101Bin
21. Example: 85 (Base 8)Oct
22. Beauty and the Base1
23. Example: 112 (Base 10)Dec
24. Flower Base1
25. Number System: OctalOctal

### Intro to Number Systems: QR Challenge

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