QR Challenge: Multiplying and Dividing Fractions
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. 5 x 3/4 | 4
|
2. 48 ÷3/42 | 642
| 3. 36 ÷3/83 | 963
| 4. 1/4 x 12/184 | 1/64
| 5. 2 1/4 ÷3/55 | 33/45
| 6. 1/8÷2 3/86 | 1/196
| 7. 4 1/5 ÷87 | 21/40
| 8. 2 1/5 ÷1/108 | 228
| 9. 12 ÷1 2/39 | 7 1/59
| 10. 1 3/5 x 2 1/210 | 410
| 11. 2 7/8 x 811 | 2311
| 12. 4 x 5 3/412 | 2312
| 13. 2 1/3 x 5 1/713 | 1213
| 14. 4/5 x 5/614 | 2/314
| 15. 7/8 x 615 | 5 1/415
| 16. 8 x 3/416 | 616
| 17. 3 1/4 x 8/917 | 2 8/917
| 18. 6 ÷2 2/518 | 2 1/218
| 19. 1 2/3 ÷319 | 5/919
| 20. 4 1/4 ÷320 | 1 5/1220 |
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=5_x_3/4
Question 1 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=48_÷3/42
Question 2 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=36_÷3/83
Question 3 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/4__x_12/184
Question 4 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2_1/4__÷3/55
Question 5 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/8÷2_3/86
Question 6 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4_1/5__÷87
Question 7 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2_1/5__÷1/108
Question 8 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=12_÷1_2/39
Question 9 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1_3/5__x_2_1/210
Question 10 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2_7/8__x_811
Question 11 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4_x_5_3/412
Question 12 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2_1/3_x_5_1/713
Question 13 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4/5__x_5/614
Question 14 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=7/8_x_615
Question 15 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=8_x_3/416
Question 16 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3_1/4__x_8/917
Question 17 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=6_÷2_2/518
Question 18 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1_2/3__÷319
Question 19 (of 20)
Multiplying and Dividing Fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4_1/4__÷320
Question 20 (of 20)