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QR Challenge: Pi day 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!


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)



1. Question:To find the circumference of a circle multiply the_______ by _______?Answer:Diameter by pi.
2. Question2:What is the circumference of a circle with radius of 4 cm?Answer2:28 pi
3. Question3:To find the area of a circle, square the _____ and multiply by?Answer3:radius and pi
4. Question4:True or False, Pi is a rational number?Answer 4: false
5. Question5: Which of the following formulas DO NOT require pi, Area and Perimeter of Rectangles, Volume of Cylinders and Spheres, or Area and Circumference of cirles? Answer 5: Area and perimeter of retangles


Pi day scavenger hunt: QR Challenge

Question 1 (of 5)


Pi day scavenger hunt: QR Challenge

Question 2 (of 5)


Pi day scavenger hunt: QR Challenge

Question 3 (of 5)


Pi day scavenger hunt: QR Challenge

Question 4 (of 5)


Pi day scavenger hunt: QR Challenge

Question 5 (of 5)