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QR Challenge: Linear Systems Campus Scavenger Hunt

Created using the ClassTools QR Treasure Hunt Generator

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

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. 2x + 3y= -36 and 2y = x + 4 by Any method(-12,-4)
2. 2x + 8y= -38 and 5x - y= -53 by Elimination(-11,-2)
3. y = 0 and x = -7 by Any method(-7, 0)
4. 2y - 8 = 3x + 3 and 3y - 12 = -2x - 2 by Elimination(-1, 4)
5. 4y - 4x = 4 and 2x + 2y = 6 by Elimination(1, 2)
6. x + y = -3 and x - y = 3 by Any method(0, -3)
7. y = 2x + 5 and y = -2x - 7 by Substitution(-3, -1)
8. y = -2x - 20 and x - 3y = 11 by Substitution(-7, -6)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=2x_+_3y=_-36_and_2y_=_x_+_4_by_Any_method

Question 1 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=2x_+_8y=_-38_and_5x_-_y=_-53_by_Elimination

Question 2 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=y_=_0_and_x_=_-7_by_Any_method

Question 3 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=2y_-_8_=_3x_+_3_and_3y_-_12_=_-2x_-_2_by_Elimination

Question 4 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=4y_-_4x_=_4_and_2x_+_2y_=_6_by_Elimination

Question 5 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=x_+_y_=_-3_and_x_-_y_=_3_by_Any_method

Question 6 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=y_=_2x_+_5_and_y_=_-2x_-_7_by_Substitution

Question 7 (of 8)

 



Linear Systems Campus Scavenger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=y_=_-2x_-_20_and_x_-_3y_=_11_by_Substitution

Question 8 (of 8)