QR Challenge: Doubles and Halves
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. Double2 | 4
|
2. Double3 | 6
| 3. Double4 | 8
| 4. Double5 | 10
| 5. Double6 | 12
| 6. Double7 | 14
| 7. Double8 | 16
| 8. Double9 | 18
| 9. Double10 | 20
| 10. Half of 10 | 5
| 11. Half of 2 | 1
| 12. Half of 6 | 3
| 13. Half of 8 | 4
| 14. Half of 12 | 6
| 15. Half of 14 | 7
| 16. Half of 16 | 8
| 17. Half of 18 | 9
| 18. Half of 20 | 10 |
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double2
Question 1 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double3
Question 2 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double4
Question 3 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double5
Question 4 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double6
Question 5 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double7
Question 6 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double8
Question 7 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double9
Question 8 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Double10
Question 9 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_10
Question 10 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_2
Question 11 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_6
Question 12 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_8
Question 13 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_12
Question 14 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_14
Question 15 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_16
Question 16 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_18
Question 17 (of 18)
Doubles and Halves: QR Challenge
https://www.classtools.net/QR/decode.php?text=Half_of_20
Question 18 (of 18)