# Print

## 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.

### Question

1. Convert 6 miles to feet31,680 feet
2. Convert 33 feet to yards11 yards
3. Convert 66 inches to feet5.5 feet
4. Change 5 meters into inches196.9 inches
5. Change 15 feet into meters4.6 meters
6. Change 64 hours into minutes3,840 minutes
7. Convert 56 hours into seconds201,000 seconds
8. Change 1,314,000 minutes into years2.5 years
9. Change 1,000 Liters into quarts1,056.7 quarts
10. Convert 3 Liters into gallons0.79 gallons
11. Change \$35,000 per year to dollars per hour\$16.83 per hour
12. Convert \$8.25 per hour to dollars per year\$17,160 per year
13. Change 220 feet per second to miles per hour150 miles per hour
14. Convert 44 miles per hour to feet per second64.5 feet per second
15. Suppose you visit the Grand Canyon. You want to take a 3 mile walking tour while you're there. At home, you pace yourself & find out that you walk 90 feet per minute. Convert this to miles per hour. Then, tell how long it would take you to walk the 3 miles at this rate.2.94 hours

### Unit Conversion - Dimensional Analysis: QR Challenge

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