QR Challenge: Speed Practice Problems

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. Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.	.44 m/s
2. If a cross country runner covers a distance of 347 meters in 134 seconds what is her speed?	2.6 m/s
3. What is the speed of a baseball that travels 49 meters in 2.4 seconds?	20.4 m/s
4. What is the speed of a horse in meters per second that runs a distance of 1.2 miles in 2.4 minutes?	.5 miles/minute
5. Calculate the velocity of a car that travels 556 kilometers northeast in 3.4 hours. Leave your answer in kilometers per hour.	163.5 km/h
6. If the distance covered by a jogger is 2,541meters through the park and the time it took to cover that distance was 43.6 minutes, what was the speed of the jogger?	58.3 m/min or .97 m/s
7. Which object has a greater velocity, a ball rolling down a 3.4 meter hill in six seconds or a fish swimming upstream and covering 5.4 meters in 0.4 minutes?	ball rolling down a hill (remember to convert both time measurements to the same unit).
8. If Seneca decides to walk across town to a store that is .95 kilometers away and she has only 25 minutes to get there, what speed does she need to maintain to arrive on time?	38 m/min or .63 m/s
9. If a projectile flies north 387 meters in 5.8 seconds, what is its velocity?	66.7 m/s north
10. Calculate the velocity of a mountain climber if that climber is moving northeast at a pace of 1.6 km in 1.4 hours? Give your answer in the SI unit for velocity.	1.1 km/h northeast
11. Create your own word problem and solve it for speed.	Create your own

 

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