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QR Challenge: What is my number? Green

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. 1. I think of a number. I half my number then I take away 6. The answer is 14. What is my number?40
2. 2. I think of a number. I double my number then I add 3. The answer is 17. What is my number?7
3. 3. I think of a number. I times my number by 3 then I half the answer. The answer is 6. What is my number?4
4. 4. I think of a number. I divide my number by 10 then add 34. The answer is 41. What is my number?70
5. 5. I think of a number. I take 17 from my number then I half my answer. The answer is 10. What is my number?37
6. 6. I think of a number. I add 238 to my number then I take away 14. The answer is 324. What is my number?100

 


What is my number? Green: QR Challenge

https://www.classtools.net/QR/decode.php?text=1._I_think_of_a_number._I_half_my_number_then_I_take_away_6._The_answer_is_14._What_is_my_number?

Question 1 (of 6)

 


What is my number? Green: QR Challenge

https://www.classtools.net/QR/decode.php?text=2._I_think_of_a_number._I_double_my_number_then_I_add_3._The_answer_is_17._What_is_my_number?

Question 2 (of 6)

 


What is my number? Green: QR Challenge

https://www.classtools.net/QR/decode.php?text=3._I_think_of_a_number._I_times_my_number_by_3_then_I_half_the_answer._The_answer_is_6._What_is_my_number?

Question 3 (of 6)

 


What is my number? Green: QR Challenge

https://www.classtools.net/QR/decode.php?text=4._I_think_of_a_number._I_divide_my_number_by_10_then_add_34._The_answer_is_41._What_is_my_number?

Question 4 (of 6)

 


What is my number? Green: QR Challenge

https://www.classtools.net/QR/decode.php?text=5._I_think_of_a_number._I_take_17_from_my_number_then_I_half_my_answer._The_answer_is_10._What_is_my_number?

Question 5 (of 6)

 


What is my number? Green: QR Challenge

https://www.classtools.net/QR/decode.php?text=6._I_think_of_a_number._I_add_238_to_my_number_then_I_take_away_14._The_answer_is_324._What_is_my_number?

Question 6 (of 6)