QR Challenge: Decimal Division Challenge
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. Question 1: What is 32.4 divided by 36? | 0.9
|
2. Question 2: What is 980 divided by 3.5? | 280
| 3. Question 3: What is 25.5 divided by 5.1? | 5
| 4. Question 4: What is 369 divided by 4.1? | 90
| 5. Question 5: What is the quotient of 6.27 divided by 1.1? | 5.7
| 6. Question 6: Divide 1.44 by 6. | 45.24
| 7. Question 7: Divide 13.16 by 2.8. | 4.7
| 8. Question 8: Divide 50.6 by 4.6. | 11
| 9. Question 9: Show the check for 9.6 x 2.9 = 27.84 | Divide 27.84 by 2.9 or 9.6
| 10. Question 10: Show the check for 2.17 x 4.5 = 9.765 | Divide 9.765 by 4.5 or 2.17
| 11. Question 11: Use compatible numbers to estimate 22,168 divided by 47. | Possible solution: 20,000 divided by 50 equals 400.
| 12. Question 12: Use compatible numbers to estimate 84,208 divided by 33. | Possible solution: 90,000 divided by 30 equals 3000.
| 13. Question 13: What is 8.856 divided by 1.8 | 4.92
| 14. Question 14: What is 3.15 divided by 0.3? | 10.5
| 15. Question 15: What's the quotient of 1.224 divided by 0.12? | 10.2 |
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-1:--What-is-32.4-divided-by-36?
Question 1 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-2:--What-is-980-divided-by-3.5?
Question 2 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-3:--What-is-25.5-divided-by-5.1?
Question 3 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-4:--What-is-369-divided-by-4.1?
Question 4 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-5:--What-is-the-quotient-of-6.27-divided-by-1.1?
Question 5 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-6:--Divide-1.44-by-6.
Question 6 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-7:--Divide-13.16-by-2.8.
Question 7 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-8:--Divide-50.6-by-4.6.
Question 8 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-9:--Show-the-check-for-9.6-x-2.9-=-27.84
Question 9 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-10:--Show-the-check-for-2.17-x-4.5-=-9.765
Question 10 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-11:--Use-compatible-numbers-to-estimate-22,168-divided-by-47.
Question 11 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-12:--Use-compatible-numbers-to-estimate-84,208-divided-by-33.
Question 12 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-13:--What-is-8.856-divided-by-1.8
Question 13 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-14:--What-is-3.15-divided-by-0.3?
Question 14 (of 15)
Decimal Division Challenge: QR Challenge
https://www.classtools.net/QR/decode.php?text=Question-15:--What's-the-quotient-of-1.224-divided-by-0.12?
Question 15 (of 15)
