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QR Challenge: Applying GCF and LCM

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. In preparation for a party, Julie is putting desserts onto platters. The chocolate cake is cut into 15 pieces and the cheesecake is cut into 6 pieces. If she wants to prepare identical platters without having any cake left over, what is the greatest number of platters she can prepare? What is this question asking you to find - GCF or LCM?GCF
2. Target sells hand towels in sets of 17 and bath towels in sets of 6. If the store sold the same number of each this morning, what is the smallest number of each type of towel that the store must sell?What is this question asking you to find - GCF or LCM?LCM
3. Trinity has 9 glasses and 6 mugs. She would like to set them out in identical groups, with none left over, in preparation for a dinner party. What is the greatest number of groups Trinity can set out? What is this question asking you to find - GCF or LCM?GCF
4. Walmart sells cards in packs of 11 and envelopes in packs of 13. Isaac wants to the same number of each, what is the minimum number of cards that he will have to buy?What is this question asking you to find - GCF or LCM?LCM
5. Kaitlyn is making flower arrangements. She has 7 roses and 14 daisies. If Kaitlyn wants to make all of the arrangements identical and have no flowers left over, what is the greatest number of flower arrangements she can make?What is this question asking you to find - GCF or LCM?GCF

 



Applying GCF and LCM: QR Challenge

https://www.classtools.net/QR/decode.php?text=Applying GCF and LCM
Q1/5:

In preparation for a party, Julie is putting desserts onto platters. The chocolate cake is cut into 15 pieces and the cheesecake is cut into 6 pieces. If she wants to prepare identical platters without having any cake left over, what is the greatest number of platters she can prepare? What is this question asking you to find - GCF or LCM?&choe=UTF-8

Question 1 (of 5)

 



Applying GCF and LCM: QR Challenge

https://www.classtools.net/QR/decode.php?text=Applying GCF and LCM
Q2/5:

Target sells hand towels in sets of 17 and bath towels in sets of 6. If the store sold the same number of each this morning, what is the smallest number of each type of towel that the store must sell?What is this question asking you to find - GCF or LCM?&choe=UTF-8

Question 2 (of 5)

 



Applying GCF and LCM: QR Challenge

https://www.classtools.net/QR/decode.php?text=Applying GCF and LCM
Q3/5:

Trinity has 9 glasses and 6 mugs. She would like to set them out in identical groups, with none left over, in preparation for a dinner party. What is the greatest number of groups Trinity can set out? What is this question asking you to find - GCF or LCM?&choe=UTF-8

Question 3 (of 5)

 



Applying GCF and LCM: QR Challenge

https://www.classtools.net/QR/decode.php?text=Applying GCF and LCM
Q4/5:

Walmart sells cards in packs of 11 and envelopes in packs of 13. Isaac wants to the same number of each, what is the minimum number of cards that he will have to buy?What is this question asking you to find - GCF or LCM?&choe=UTF-8

Question 4 (of 5)

 



Applying GCF and LCM: QR Challenge

https://www.classtools.net/QR/decode.php?text=Applying GCF and LCM
Q5/5:

Kaitlyn is making flower arrangements. She has 7 roses and 14 daisies. If Kaitlyn wants to make all of the arrangements identical and have no flowers left over, what is the greatest number of flower arrangements she can make?What is this question asking you to find - GCF or LCM?&choe=UTF-8

Question 5 (of 5)