QR Challenge: Equations, Expressions answers only
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. 2,401 |
|
2. 2. 4 |
| 3. 3. (5 x a) x 7 |
| 4. 4. $84.00 |
| 5. 5. B |
| 6. 6. x = 5 |
| 7. 7. constant rate of increase |
| 8. 8. M = 13; 2x + 1 |
| 9. 9. 4 x (3 + 8) |
| 10. 10. 8 divided by 9 |
| 11. 11. divide the input by 2, add 4 |
| 12. 12. times by 3, add 1 |
| 13. 13. varying rate of change |
| 14. 14. double the previous number and add 1 |
| 15. 15. Take your answer to your teacher to be checked |
| 16. 16. 3.0 x 0.6 |
| 17. 17. x = 3 | |
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=1.__2,401
Question 1 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=2.__4
Question 2 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=3.__(5_x_a)_x_7
Question 3 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=4.__$84.00
Question 4 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=5.__B
Question 5 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=6.__x_=_5
Question 6 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=7.__constant_rate_of_increase
Question 7 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=8._M_=_13;_2x_+_1
Question 8 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=9.__4_x_(3_+_8)
Question 9 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=10._8_divided_by_9
Question 10 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=11._divide_the_input_by_2,_add_4
Question 11 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=12._times_by_3,_add_1
Question 12 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=13._varying_rate_of_change
Question 13 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=14._double_the_previous_number_and_add_1
Question 14 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=15._Take_your_answer_to_your_teacher_to_be_checked
Question 15 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=16._3.0_x_0.6
Question 16 (of 17)
Equations, Expressions answers only: QR Challenge
https://www.classtools.net/QR/decode.php?text=17._x_=_3
Question 17 (of 17)
