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QR Challenge: World War 2 - Code Breaking

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

3. Print out the QR codes.

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.


Questions / Answers (teacher reference)

Question

Answer

1. 9²81
2. 3x20+4x372
3. 5²x4+10%of 50105
4. 10%of24024
5. 8x1188
6. 6²x10360
7. √819
8. 10x5x7550
9. 4²16
10. 90%of7063
11. 9²81
12. 6+5x436
13. 1.2x100120
14. 15%of30045
15. √648
16. The first prime number2
17. 1.5x1015
18. √366
19. √36-51
20. 5²-1510
21. 12x12x2-44240
22. ½ of 2³4
23. √93
24. √497
25. 5x6+3x442
26. √36-15

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=9²

Question 1 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=3x20+4x3

Question 2 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=5²x4+10%of_50

Question 3 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=10%of240

Question 4 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=8x11

Question 5 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=6²x10

Question 6 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√81

Question 7 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=10x5x7

Question 8 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=4²

Question 9 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=90%of70

Question 10 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=9²

Question 11 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=6+5x4

Question 12 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.2x100

Question 13 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=15%of300

Question 14 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√64

Question 15 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_first_prime_number

Question 16 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.5x10

Question 17 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√36

Question 18 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√36-5

Question 19 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=5²-15

Question 20 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=12x12x2-44

Question 21 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=½_of_2³

Question 22 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√9

Question 23 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√49

Question 24 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=5x6+3x4

Question 25 (of 26)

 



World War 2 - Code Breaking: QR Challenge

https://www.classtools.net/QR/decode.php?text=√36-1

Question 26 (of 26)