QR Challenge: Place Value Hundreds, Tens, and Ones

Created using the ClassTools QR Treasure Hunt Generator

Teacher Notes

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.

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. ones	1
2. hundreds	2
3. tens	3
4. tens	4
5. ones	5
6. hundreds	6
7. 8	7
8. 300	8
9. 50	9
10. 40	10
11. 3	11
12. 800	12
13. 768	13
14. 39	14
15. 207	15
16. 512	16
17. 840	17
18. five hundred forty-two	18
19. sixty-seven	19
20. eight hundred four	20
21. three hundred thirty	21
22. fifteen	22
23. 70 + 8	23
24. 600 + 8	24
25. 300 + 60	25
26. 10 + 2	26
27. 542	27
28. 38	28
29. 907	29
30. 14	30

 

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