QR Challenge: Rounding Numbers
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. 18.6 to the nearest unit | 19
|
2. 299.86 to the nearest ten | 300
| 3. 19.64 to the nearest tenth | 19.6
| 4. 20,710 to the nearest thousand | 21,000
| 5. 78.999 to the nearest hundredth | 79
| 6. 3099 to the nearest hundred | 3100
| 7. 30.9 to the nearest unit | 31
| 8. 10.659 to the nearest hundredth | 10.66
| 9. 100.9 to the nearest unit | 101
| 10. 9647.3 to the nearest thousand | 10000
| 11. 1276 to the nearest hundred | 1300
| 12. 364,578 to he nearest ten thousand | 360,000
| 13. 5.674 to the nearest hundredth | 5.67
| 14. 1,376,482 to the nearest million | 1,000,000
| 15. 2099.4 to the nearest unit | 2099
| 16. 3946.32 to the nearest tenth | 3946.3
| 17. 19,364 to the nearest hundred | 19,400
| 18. 201.201 to the nearest hundredth | 201.2
| 19. 80,946 to the nearest thousand | 81,000
| 20. 88.854 to the nearest hundredth | 88.85 |
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=18.6-to-the-nearest-unit
Question 1 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=299.86-to-the-nearest-ten
Question 2 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=19.64-to-the-nearest-tenth
Question 3 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=20,710-to-the-nearest-thousand
Question 4 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=78.999-to-the-nearest-hundredth
Question 5 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=3099-to-the-nearest-hundred
Question 6 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=30.9-to-the-nearest-unit
Question 7 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=10.659-to-the-nearest-hundredth
Question 8 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=100.9-to-the-nearest-unit
Question 9 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=9647.3-to-the-nearest-thousand
Question 10 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=1276-to-the-nearest-hundred
Question 11 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=364,578-to-he-nearest-ten-thousand
Question 12 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=5.674-to-the-nearest-hundredth
Question 13 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=1,376,482-to-the-nearest-million
Question 14 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=2099.4-to-the-nearest-unit
Question 15 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=3946.32-to-the-nearest-tenth
Question 16 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=19,364-to-the-nearest-hundred
Question 17 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=201.201-to-the-nearest-hundredth
Question 18 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=80,946-to-the-nearest-thousand
Question 19 (of 20)
Rounding Numbers: QR Challenge
https://www.classtools.net/QR/decode.php?text=88.854-to-the-nearest-hundredth
Question 20 (of 20)