# 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 How much money did a cinema make if they sold 12 premium seats at €21 each? €252 How many degrees in a triangle? 180 degrees Mr. Cody spent €22.62 on new notebooks for the 26 pupils in sixth class. How much did each notebook cost? €0.87 How many days are in 28 weeks? 196 days How many degrees do I turn to go clockwise from E to SW? 135 degrees 516 divided by 6? 86 673x68? 45764 825x27:? 22275 How many degrees are there between the hands of a clock at 4 o'clock? 120 degrees 45.08x38? 1713.04 What do we call lines that meet at right angles? Perpendicular 98.7 divided by 21? 4.7 648 divided by 18? 36 A school dinner costs €2.35. How much will it cost to have school dinners every day for 6 weeks? €70.50 276 guests attend a wedding. If only 12 people can be seated at a table how many tables are needed to accommodate all the guests? 23 tables

### Mr. Cody's Maths Scavenger Hunt: QR Challenge

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### Mr. Cody's Maths Scavenger Hunt: QR Challenge

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