# 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

• Bring these devices into the lesson.

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. How many lines of symmetry does an isosceles triangle have? 1 2. Measure the bearing of b from a on your sheet 077 3. What is three quarters of 60? 45 4. What is the order of rotational symmetry of a regular hexagon? 6 5. Work out the size of angle x 130 6. What size is angle y in Q5? Give a reason for your answer 130,vertically opposite x 7. What is 7 squared? 49 8. What is the square root of 64? 8 9. Calculate the length of side x 6cm 10. Circle the prime number 37 11. What is Mrs Ackroyd's favourite cake? lemon drizzle 12. Work out the area of the trapezium. 28cm^2 13. What size is the exterior angle of a regular octagon? 45 14. Convert 15 miles into kilometres 24km 15. Simplify fully 4a+3b+7a+b-2a+6b+3 9a+10b+3 16. What is the area of the circle? Give your answer to 1 dp 78.5cm^2 17. Solve the equation 4x - 7 = 29 x=9 18. What is the area of the triangle on your sheet? 40cm^2

### Year 10 Maths Quiz: QR Challenge

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