# 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 8x5 40 7x9 63 10x4 40 0x1 0 Name the property being shown: 4x3=3x4 commutative Name the property being shown: 2x(3+4)=(2x3)+(2x4) distributive Name the property being shown: 8x0=0 zero Name the property being shown: 3x(7x1)=(3x7)x1 associative Identify the missing number: 5x__=45 9 Identify the missing number: 3x(6+2)=(___x6)+(3x2) 3 Identify the missing number: ___x8+16 2 90x7 630 8x50 400 6x30 180 50x9 450 20x8 160 10x3 30 60x5 300 2x60 120

### 5h Math: QR Challenge

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