QR Challenge: Unit Rate

Created using the ClassTools QR Treasure Hunt Generator

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

• Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
• Bring these devices into the lesson.

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. A flight from Los Angeles to New York burned 12,600 gallons of fuel. If the flight took 5 hours and 50 minutes, calculate the rate of fuel used in the following format: ___gal/min.	36 gal/min
2.
3. A bug sitting on the end of a wind turbine blade travels 200 feet with each full turn of the windmill. If the blade makes 22 revolutions per minute, how many feet per minute is the bug traveling?	4,400 ft/min
4.
5. A clock shows the time is 3:00 PM. Exactly 30 minutes later, the clock shows the time is 1:30 PM. How many minutes per day does the clock lose?	3 min/day
6.
7. A forest was planted with pine trees and the height of the trees was measured every five years. The tree grew 25 ft during the first 5 years. If it continues to grow at this rate, how tall will it be in 30 years?	150 feet
8.
9. A company paid $900,000 to have a 30-second commercial shown during the Super Bowl game. What was the cost per second to air the commercial?	$30,000/second

 

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