QR Challenge: Add and Subtract Fraction Word 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.

---

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. Sofia bought 3/4 yards of blue fabric and 5/6 yards of red fabric to make pillows for her bed. How much fabric did she purchase?	1 14/24 yards
2. Ben ate 7/8 of a pizza. Myah ate 1/3 of a pizza. How much more pizza did Ben eat than Myah?	13/24 pizza
3. Beth walked 1/4 mile to Natalia's house. Then they walked 4/5 mile to the store. How far did Beth walk?	1 1/20 miles
4. Aidan practiced piano for 1/3 hour on Thursday and 7/12 hours on Friday. How much longer did he practice on Friday? Can you figure out how many minutes?	3/12 of an hour, 15 minutes
5. Rachelle needs 7/8 yards of wood to make a shelf. Nea needs 5/9 of a yard to make her shelf. How long of a board should they buy to share?	1 31/72 yards
6. Ashton spent 2 1/4 hours at the mall. Liam was at the mall for 2 5/6 hours. who spent more time at the mall? How much longer? How many minutes?	Liam, 7/12 of an hour, 35 minutes
7. Jackson needs 3 5/8 cups of sugar to make cookies and 1/4 cup of sugar for the frosting. How much sugar does he need in all?	3 7/8 cups
8. Harry weighed 6 3/4 lbs. when he was born. Hayden weighed 5 3/5 lbs. when she was born. How much more did Harry weigh then Hayden?	1 3/20 lbs.
9. Morgan rode in the car for 7 1/2 hours on Saturday and 6 2/3 hours on Sunday. How many hours did she spend in the car this weekend?	14 1/6 hours
10. Skylr has 1/3 candy bar left. Jake has 4/9 of his candy bar left. They both give their leftovers to Mrs. Facer. How much candy bar does she receive?	7/9 of a candy bar

 

---