# Print

## 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

• Bring these devices into the lesson.

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.

### Question

1. Compare the following fractions by finding the common denominator: 7/9 ___ 2/8.>, 56/72
2. Compare the following fractions by finding the common denominator: 3/7 ___ 2/9.>, 27/63
3. Compare the following fractions by finding the common denominator: 4/6 ___ 3/7.>, 28/42
4. Compare the following fractions by finding the common denominator: 5/15 ___ 7/12.<, 105/180
5. Compare the following fractions by finding the common denominator: 2/3 ___ 3/4.<, 9/12
6. Compare the following fractions by finding the common denominator: 3/4 ___ 6/8.=, 24/32
7. Compare the following fractions by finding the common denominator: 1/3 ___ 3/9.=, 9/27
8. Which of the following are equivalent fractions for 3/9? 1/3, 2/3, 6/18, 12/361/3, 6/18, 12/36
9. Which of the following are equivalent fractions for 4/6? 1/3, 2/3, 6/18, 16/242/3, 16/24
10. Which of the following are equivalent fractions for 6/10? 2/5, 5/3, 12/20, 60/10012/20, 60/100
11. Which of the following are equivalent fractions for 3/3? 3/1, 1/1, 7/7, 9/11/1, 7/7
12. Write an equivalent fraction for 2/5 where the size of each piece gets smaller.4/10, 6/15, denominator needs to get larger.
13. Write an equivalent fraction for 12/20 where the size of each piece gets larger.3/5, 6/10, denominator needs to get smaller.
14. Write an equivalent fraction for 4/7 where the total number of equal pieces gets larger.8/14, 12/21, denominator needs to get larger.
15. Write an equivalent fraction for 10/15 where the total number of equal pieces gets smaller.2/3
16. Show on a number line using benchmark fractions where 2/3 is located.number line 2/3 benchmark fractions
17. Show on a number line using benchmark fractions where 1/5 is located.number line 1/5 benchmark fractions
18. Compare 4/9 and 6/11 on a number line using benchmark fractions.4/7 is smaller than 6/11
19. Compare 5/9 and 3/7 on a number line using benchmark numbers.5/9 is larger than 3/7

### ComparingFractions_4th: QR Challenge

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