# 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 678x34 23052 891x40 35640 3333x65 216645 154x95 14630 78x14 1092 66x50 3300 Robert saves £5.40 every week for 8 weeks. How much has he saved after 8 weeks? £43.20 9000x8 72000 6701x90 603090 MCCxLXIV 76800 LXXIXsquared 6241 73cubed 389017 51squared 2601 87cubed 658503 4789x25 119725 Rachel runs 4.67km in 30 minutes. How far does she run in 4 hours? 37.36km 784x32 25088 54.35x9 489.15 123.99x4 495.96 54.56x65 3546.40

### Multiplying by 2dg numbers: QR Challenge

Question 1 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 2 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 3 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 4 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 5 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 6 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 7 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 8 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 9 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 10 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 11 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 12 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 13 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 14 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 15 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 16 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 17 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 18 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 19 (of 20)

### Multiplying by 2dg numbers: QR Challenge

Question 20 (of 20)