QR Challenge: math multiplication
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. 237 X 21 | 4977
|
2. 9 X 13 | 117
| 3. 944 X 8 | 7552
| 4. 1401 X 7 | 9807
| 5. 95 X 47 | 4465
| 6. a project that took 5 hours and 17 minutes was finished at 3:30pm. when was the project started | 10:13 am
| 7. What is the value of the digit 6 in the number 164,012 | 60,000
| 8. Amanda works 18 hours each week for $7 and hour. how much does she earn | $126
| 9. What number times itself equals 81 | 9
| 10. 2658 X 3 | 7974
| 11. 37 X 22 | 814
| 12. 38 X 64 | 2432
| 13. 71 X 61 | 4331
| 14. 888 X 2 | 19,536
| 15. 794 X 25 | 19,850
| 16. 204 X 41 | 8,364
| 17. 711 X 55 | 39,105 |
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=237_X_21
Question 1 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=9_X_13
Question 2 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=944_X_8
Question 3 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=1401_X_7
Question 4 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=95_X_47
Question 5 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=a_project_that_took_5_hours_and_17_minutes_was_finished_at_3:30pm._when_was_the_project_started
Question 6 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_is_the_value_of_the_digit_6_in_the_number_164,012
Question 7 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=Amanda_works__18_hours_each_week_for_$7_and_hour._how_much_does_she_earn
Question 8 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_number_times_itself_equals_81
Question 9 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=2658_X_3
Question 10 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=37_X_22
Question 11 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=38_X_64
Question 12 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=71_X_61
Question 13 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=888_X_2
Question 14 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=794_X_25
Question 15 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=204_X_41
Question 16 (of 17)
math multiplication: QR Challenge
https://www.classtools.net/QR/decode.php?text=711_X_55
Question 17 (of 17)