QR Challenge: October 16 Math Practice
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.
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. 18 | 26=8+x
|
2. 5 | 3+x = 8
| 3. 8 | 15+x=23
| 4. 6 | -15+n=-9
| 5. -16 | x+4=-12
| 6. 20 | x-7=13
| 7. -4 | x-9=-13
| 8. 1 | x-6=-5
| 9. -12 | x-15=-27
| 10. -7 | x+16=9
| 11. 16 | 6=a/4+2
| 12. 4 | -6+x/4=-5
| 13. 0 | 9x-7=-7
| 14. -20 | 0=4+x/5
| 15. 20 | -4=x/20-5
| 16. -11 | -1=(5+x)/6
| 17. -6 | 2(n+5)=-2
| 18. function | {(2,3)(4,5)(8,9)(10,11)}
| 19. function | {(4,5)(7,12)(13,17)}
| 20. non function | {(2,4)(2,5)(2,7)(2,9)}
| 21. 49 | 1,4,9,16,25,36...
| 22. 93 | 30,21,51,42,72, 63...
| 23. 21 | 3,6,9,12,15,18...
| 24. function | graph
| 25. non-liner | graph |
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=18
Question 1 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=5
Question 2 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=8
Question 3 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=6
Question 4 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-16
Question 5 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=20
Question 6 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-4
Question 7 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=1
Question 8 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-12
Question 9 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-7
Question 10 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=16
Question 11 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=4
Question 12 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=0
Question 13 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-20
Question 14 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=20
Question 15 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-11
Question 16 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=-6
Question 17 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=function
Question 18 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=function
Question 19 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=non_function
Question 20 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=49
Question 21 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=93
Question 22 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=21
Question 23 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=function
Question 24 (of 25)
October 16 Math Practice: QR Challenge
https://www.classtools.net/QR/decode.php?text=non-liner
Question 25 (of 25)