# 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 Five people share a taxi to their hotel in New York City. In all, the bill came to \$15.50. How much did each person have to pay? \$3.10 per person The friends stopeed to get apples. Each apple cost \$1.99. The total price came out to be \$15.92. How many apples did they buy? 8 apples The friends took a carriage ride that was 1.5 miles long, and it cost \$62.40. How much did it cost per mile? \$41.60 The friends went to the LEGO store, and bought an 8 oz.countainer of LEGO pieces. The total cost was \$34.00. How much did each ounce of LEGOs cost? \$4.25 At the American Girl Doll Store, they spent in all \$545.45. They split the bill evenly. How much did each friend pay? \$109.09 The friends need directions to the restaurant for dinner. Their phone has 8.24 of gigabites left. If for every minute she uses the phone, it will take up 0.15 gigabites, how many minutes do they have left to use? 54.93 minutes The restaurant is 9.6 blocks away. They can walk 0.8 blocks per minute, how many minutes will it take them to get there? 12 minutes Dinner costs \$560.00. They are treating a friend for their birthday, so only 4 of them will be paying for the dinner. How much will each of person pay? \$140.00

### New York City Decimal Scavenger Hunt: QR Challenge

Question 1 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 2 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 3 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 4 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 5 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 6 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 7 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 8 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 9 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 10 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 11 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 12 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 13 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 14 (of 15)

### New York City Decimal Scavenger Hunt: QR Challenge

Question 15 (of 15)