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QR Challenge: Finding Unit Rates

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

3. Print out the QR codes.

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

1. A recipe has a ratio of 3 cups of milk to 12 eggs. How many eggs are needed if 9 cups of milk are used? How many cups of milk would be needed with 4 eggs?Start with the original ratio of milk to eggs
2. Jack scores 30 goals in 15 soccer games. Using the unit rate, how many goals will he score in 20 games?Start by finding the number of goals he scored per game.
3. Pam is trying to decide if she could save money by buying her sugar in bulk. She can either pay $3 for 7 pounds or $24 for 60 pounds. Would she save money by buying in bulk?Find the unit rate of each and compare.
4. Terry can run 4 laps in twelve minutes. Susan can run 2 laps in five minutes. Who is the faster runner? Find their rate per minute and compare
5. The coach paid $75 for 18 hamburgers. How much would it cost him to buy 24 hamburgers?First, find the price per hamburger.
6. Nate earns $20 for every lawn he mows. He can mow at least two lawns an hour. At this rate how long would Nate have to work to earn $200 per day? How much does he earn in one hour?

 



Finding Unit Rates: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-recipe-has-a-ratio-of-3-cups-of-milk-to-12-eggs.--How-many-eggs-are-needed-if-9-cups-of-milk-are-used?--How-many-cups-of-milk-would-be-needed-with-4-eggs?

Question 1 (of 6)

 



Finding Unit Rates: QR Challenge

https://www.classtools.net/QR/decode.php?text=Jack-scores-30-goals-in-15-soccer-games.--Using-the-unit-rate,-how-many-goals-will-he-score-in-20-games?

Question 2 (of 6)

 



Finding Unit Rates: QR Challenge

https://www.classtools.net/QR/decode.php?text=Pam-is-trying-to-decide-if-she-could-save-money-by-buying-her-sugar-in-bulk.--She-can-either-pay-$3-for-7-pounds-or-$24-for-60-pounds.--Would-she-save-money-by-buying-in-bulk?

Question 3 (of 6)

 



Finding Unit Rates: QR Challenge

https://www.classtools.net/QR/decode.php?text=Terry-can-run-4-laps-in-twelve-minutes.--Susan-can-run-2-laps-in-five-minutes.--Who-is-the-faster-runner?

Question 4 (of 6)

 



Finding Unit Rates: QR Challenge

https://www.classtools.net/QR/decode.php?text=The-coach-paid-$75-for-18-hamburgers.--How-much-would-it-cost-him-to-buy-24-hamburgers?

Question 5 (of 6)

 



Finding Unit Rates: QR Challenge

https://www.classtools.net/QR/decode.php?text=Nate-earns-$20-for-every-lawn-he-mows.--He-can-mow-at-least-two-lawns-an-hour.--At-this-rate-how-long-would-Nate-have-to-work-to-earn-$200-per-day?

Question 6 (of 6)