QR Challenge: Multiplication/ Division Review

Created using the ClassTools QR Treasure Hunt Generator

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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. 235x14	3290
2. 2.15x40	86
3. Sara and Layla baked 308 brownies for their school's bake sale. The school will sell each brownie for 50 cents. If all the brownies sell, how much money will the school earn from brownie sales?	$154
4. 525/5	105
5. ___/4=100	400
6. 77/7	11
7. Find the total number of legs on 7 spiders.	56 legs
8. Andrea had 89 stickers to share between her and 4 of her friends. How many did each person get? How many were left over?	17R4
9. 14.5x2.3	33.35
10. 69.1x.23	15.893
11. There were 6 eggs in each of 214 egg cartons. How many eggs were there altogether?	1284 eggs
12. Find the total number of legs on 9 cows.	36 legs
13. 71/3	23R2
14. 77/5	15R2
15. 17.24x8	137.92