QR Challenge: perimeter, area, volume

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

• 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.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. If the radius of a circle is 6 inches, what is the diameter?	3 inches
2. If the diameter of a circle is 8 feet, what is the radius?	4 feet
3. If the side of square is 3 inches long, what is the perimeter?	12
4. What is the area of a rectangle if the base is 4cm and the width is 3cm?	6 square cm
5. What is the area of a triangle if the base is 8m and the height is 3m?	12 square centimeters
6. What is the volume of a rectangular prism is the base is 5cm, the width is 4cm and the height is 3cm?	60 cubic cm
7. What is the volume of a cube if all of the sides are 3 inches long?	27 cubic inches

 

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