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QR Challenge: Order of Operation/Absolute Value

Created using the ClassTools QR Treasure Hunt Generator

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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. Solve: 2 x 3 + ( 6÷2)9
2. Solve: |-21|21
3. What is the distance between -4 and 9?13
4. Using the Order of Operations, solve the following: 3^2 + 5 x 4 ÷ 219
5. Solve: (6 + 2 x 3) - 57
6. Solve: |125|125
7. Find the distance between these two points: -11 and 2233
8. What is the absolute value of -2/5?2/5
9. Solve: 4 x (4 + 2 ÷ 1) -618
10. Find the distance between these two points: -9.7 and -10.71

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:__2_x_3_+_(_6÷2)

Question 1 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:___|-21|

Question 2 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_distance_between__-4_and_9?

Question 3 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Using_the_Order_of_Operations,_solve_the_following:__3^2_+_5_x_4_÷_2

Question 4 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:__(6_+_2_x_3)_-_5

Question 5 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:___|125|

Question 6 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_the_distance_between_these_two_points:___-11_and_22

Question 7 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_absolute_value_of_-2/5?

Question 8 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:___4_x_(4_+_2_÷_1)_-6

Question 9 (of 10)

 


Order of Operation/Absolute Value: QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_the_distance_between_these_two_points:__-9.7_and_-10.7

Question 10 (of 10)