QR Challenge: Multiplying Bigger Numbers
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. 250 | 50 x 5 =
|
2. 284 | 71 x 4 =
| 3. 156 | 52 x 3 =
| 4. 86 | 86 x 1 =
| 5. 240 | 40 x 6 =
| 6. 63 | 21 x 3 =
| 7. 328 | 82 x 4 =
| 8. 99 | 33 x 3 =
| 9. 48 | 12 x 4 =
| 10. 66 | 22 x 3 =
| 11. 84 | 21 x 4 =
| 12. 36 | 12 x 3 =
| 13. 48 | 24 x 2 =
| 14. 328 | 41 x 8 =
| 15. 567 | 81 x 7 =
| 16. 204 | 51 x 4 =
| 17. 33 | 11 x 3 =
| 18. 426 | 71 x 6 =
| 19. 455 | 91 x 5 =
| 20. 0 | 92 x 0=
| 21. 186 | 62 x 3 =
| 22. 69 | 23 x 3 =
| 23. 88 | 44 x 2 =
| 24. 246 | 82 x 3 =
| 25. 128 | 34 x 2 =
| 26. 48 | 24 x 2 =
| 27. 88 | 22 x 4 =
| 28. 28 | 14 x 2 =
| 29. 208 | 52 x 4 =
| 30. 189 | 63 x 3 = |
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=250
Question 1 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=284
Question 2 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=156
Question 3 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=86
Question 4 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=240
Question 5 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=63
Question 6 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=328
Question 7 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=99
Question 8 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=48
Question 9 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=66
Question 10 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=84
Question 11 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=36
Question 12 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=48
Question 13 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=328
Question 14 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=567
Question 15 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=204
Question 16 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=33
Question 17 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=426
Question 18 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=455
Question 19 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=0
Question 20 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=186
Question 21 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=69
Question 22 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=88
Question 23 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=246
Question 24 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=128
Question 25 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=48
Question 26 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=88
Question 27 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=28
Question 28 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=208
Question 29 (of 30)
Multiplying Bigger Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=189
Question 30 (of 30)