QR Challenge: Math 8 Test- Solving 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 + x = - 12 | -11
|
2. 3x = 27 | 9
| 3. x - 8 = - 15 | -7
| 4. x - 1 = -1 | 0
| 5. 5x - 1 = 49 | 10
| 6. 4x + 5 = 33 | 7
| 7. 4x + 5 = 9 | 1
| 8. 9 - 5x = 14 | -1
| 9. - 5x - 3 - 6x = - 3 | 0
| 10. - 14 = - 7x + 6x - 8 | 6
| 11. 8 + 3x + 6x = 71 | 7
| 12. - 37 = - x + 5x + 7 | -11
| 13. - 8 - 7x = - 5x + 4 | -6
| 14. 4x + 7 = 21 + 2x | 7
| 15. - 3x + 7 = 7x - 53 | 6
| 16. - 4x + 4 = x + 49 | -9
| 17. - 6(5 + 4x) = 42 | -3
| 18. 2(8 + 5x) = 76 | 6
| 19. - 6( - 10 + x) = 60 | 0
| 20. 4( - 5 + 3x) = 76 | 8
| 21. BONUS -3(2x - 8) - 6(-x + 4) = -9x - 18 + 3x | -3 |
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-1_+_x_=_-_12
Question 1 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=3x_=_27
Question 2 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=x_-_8_=_-_15
Question 3 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=x_-_1_=_-1
Question 4 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=5x_-_1_=_49
Question 5 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=4x_+_5_=_33
Question 6 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=4x_+_5_=_9
Question 7 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=9_-_5x_=_14
Question 8 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_5x_-_3_-_6x_=_-_3
Question 9 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_14_=_-_7x_+_6x_-_8
Question 10 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=8_+_3x_+_6x_=_71
Question 11 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_37_=_-_x_+_5x_+_7
Question 12 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_8_-_7x_=_-_5x_+_4
Question 13 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=4x_+_7_=_21_+_2x
Question 14 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_3x_+_7_=_7x_-_53
Question 15 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_4x_+_4_=_x_+_49
Question 16 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_6(5_+_4x)_=_42
Question 17 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=2(8_+_5x)_=_76
Question 18 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=-_6(_-_10_+_x)_=_60
Question 19 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=4(_-_5_+_3x)_=_76
Question 20 (of 21)
Math 8 Test- Solving Equations: QR Challenge
https://www.classtools.net/QR/decode.php?text=BONUS__-3(2x_-_8)_-_6(-x_+_4)_=_-9x_-_18_+_3x
Question 21 (of 21)