QR Challenge: Types of number
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. List the factors of 12 | 1,2,3,4,6,12
|
2. The first five multiples of 7 | 7,14,21,28,35
| 3. The first five square numbers | 1,4,9,16,25
| 4. The prime numbers between 10 and 20 | 11,13,17,19
| 5. The only even prime | 2
| 6. 10 squared | 100
| 7. The LCM of 4 and 6 | 12
| 8. The first five cube numbers | 1,8,27,64,125
| 9. The HCF of 10 and 15 | 5
| 10. 2 cubed | 8
| 11. List the factors of 16 | 1,2,4,8,16
| 12. The multiples of 4 between 10 and 20 | 12 and 16
| 13. The LCM of 12 and 18 | 36
| 14. 3 squared | 9
| 15. 10 cubed | 1000
| 16. 7 squared | 49
| 17. The HCF of 27 and 36 | 9
| 18. The LCM of 5 and 15 | 15
| 19. The ODD factors of 24 | 1 and 3
| 20. The First 3 EVEN multiples of 3 | 6,12,18 |
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=List-the-factors-of-12
Question 1 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-first-five-multiples-of-7
Question 2 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-first-five-square-numbers
Question 3 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-prime-numbers-between-10-and-20
Question 4 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-only-even-prime
Question 5 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=10-squared
Question 6 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-LCM-of-4-and-6
Question 7 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-first-five-cube-numbers
Question 8 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-HCF-of-10-and-15
Question 9 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=2-cubed
Question 10 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=List-the-factors-of-16
Question 11 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-multiples-of-4-between-10-and-20
Question 12 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-LCM-of-12-and-18
Question 13 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=3-squared
Question 14 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=10-cubed
Question 15 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=7-squared
Question 16 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-HCF-of-27-and-36
Question 17 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-LCM-of-5-and-15
Question 18 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-ODD-factors-of-24
Question 19 (of 20)
Types of number: QR Challenge
https://www.classtools.net/QR/decode.php?text=The-First-3-EVEN-multiples-of-3
Question 20 (of 20)
