QR Challenge: Naming Ionic and Covalent Compounds
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. BaCl2 | barium chloride
|
2. CaS | calcium sulfide
| 3. PCl3 | phosphorus trichloride
| 4. MgF2 | magnesium fluoride
| 5. SO2 | sulfur dioxide
| 6. P2O5 | diphosphorus pentoxide
| 7. AlN | aluminum nitride
| 8. NO | nitrogen monoxide
| 9. SiO2 | silicon dioxide
| 10. CuI2 | copper II iodide
| 11. FrF | francium fluoride
| 12. SeS2 | selenium disulfide
| 13. Zn3P2 | zinc phosphide
| 14. CH4 | carbon tetrahydride
| 15. Cs2Se | cesium selenide |
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=BaCl2
Question 1 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=CaS
Question 2 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=PCl3
Question 3 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=MgF2
Question 4 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=SO2
Question 5 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=P2O5
Question 6 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=AlN
Question 7 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=NO
Question 8 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=SiO2
Question 9 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=CuI2
Question 10 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=FrF
Question 11 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=SeS2
Question 12 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=Zn3P2
Question 13 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=CH4
Question 14 (of 15)
Naming Ionic and Covalent Compounds: QR Challenge
https://www.classtools.net/QR/decode.php?text=Cs2Se
Question 15 (of 15)