QR Challenge: Balancing Chemical Equations
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. 1+3->2 | a
|
2. 1+2->1+2 | a
| 3. 4+5->4+6 | a
| 4. 2+1->1+2 | a
| 5. 1+1->1+3 | a
| 6. 1+2->1+2 | a
| 7. 4+3->2 | a
| 8. 3+1->1+3 | a
| 9. 8+17->1+8 | a
| 10. 2+6->2+3 | a
| 11. 1+5->1+4 | a
| 12. 1+2->1+4 | a
| 13. 2+6->2+3 | a
| 14. 1+3->2+3 | a
| 15. 1+6->2+3 | a
| 16. 1+4->1+2 | a
| 17. 1+2->1+1 | a
| 18. 12+2->4+6 | a
| 19. 1+8->1+4+4 | a
| 20. 2+3->1+3 | a
| 21. 1+2->2+1+1 | a
| 22. 2+1->2 | a
| 23. 1+5->2 | a |
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q1/23:
1+3->2&choe=UTF-8
Question 1 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q2/23:
1+2->1+2&choe=UTF-8
Question 2 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q3/23:
4+5->4+6&choe=UTF-8
Question 3 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q4/23:
2+1->1+2&choe=UTF-8
Question 4 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q5/23:
1+1->1+3&choe=UTF-8
Question 5 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q6/23:
1+2->1+2&choe=UTF-8
Question 6 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q7/23:
4+3->2&choe=UTF-8
Question 7 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q8/23:
3+1->1+3&choe=UTF-8
Question 8 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q9/23:
8+17->1+8&choe=UTF-8
Question 9 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q10/23:
2+6->2+3&choe=UTF-8
Question 10 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q11/23:
1+5->1+4&choe=UTF-8
Question 11 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q12/23:
1+2->1+4&choe=UTF-8
Question 12 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q13/23:
2+6->2+3&choe=UTF-8
Question 13 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q14/23:
1+3->2+3&choe=UTF-8
Question 14 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q15/23:
1+6->2+3&choe=UTF-8
Question 15 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q16/23:
1+4->1+2&choe=UTF-8
Question 16 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q17/23:
1+2->1+1&choe=UTF-8
Question 17 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q18/23:
12+2->4+6&choe=UTF-8
Question 18 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q19/23:
1+8->1+4+4&choe=UTF-8
Question 19 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q20/23:
2+3->1+3&choe=UTF-8
Question 20 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q21/23:
1+2->2+1+1&choe=UTF-8
Question 21 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q22/23:
2+1->2&choe=UTF-8
Question 22 (of 23)
Balancing Chemical Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=Balancing Chemical Equations
Q23/23:
1+5->2&choe=UTF-8
Question 23 (of 23)
