QR Challenge: Multiplying Whole 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. 421x36 | 15156
|
2. 209x34 | 7106
| 3. 924x53 | 48972
| 4. 78x49 | 3822
| 5. 167x89 | 14863
| 6. 492x59 | 29028
| 7. 3798x27 | 102546
| 8. 689x78 | 53742
| 9. 397x34 | 13498
| 10. 4832x57 | 275429
| 11. 687x23 | 15801
| 12. 458x67 | 30686
| 13. 549x32 | 17568
| 14. 689x99 | 68211
| 15. 407x32 | 13024 |
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=421x36
Question 1 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=209x34
Question 2 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=924x53
Question 3 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=78x49
Question 4 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=167x89
Question 5 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=492x59
Question 6 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=3798x27
Question 7 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=689x78
Question 8 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=397x34
Question 9 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=4832x57
Question 10 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=687x23
Question 11 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=458x67
Question 12 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=549x32
Question 13 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=689x99
Question 14 (of 15)
Multiplying Whole Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=407x32
Question 15 (of 15)