QR Challenge: Digital Technologies

Created using the ClassTools QR Treasure Hunt Generator

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.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. Binary is made up of two numbers. What are they?	0 and 1
2. What is denary?	base-10 number; decimals; combination of 0 and 9
3. What does RGB stand for?	Red,Green,Blue
4. What is a wireframe?	A layout of a website or app that shows an overview of the structure and functions.
5. What is the wireframe symbol for an image?	square or rectangle with a cross.
6. Name 2 digital technologies that can take photos.	Answer varies e.g. camera, mobile phone, ipad
7. Name one audio file format.	mp3,wav
8. Name one video file format.	mp4, mov, avi
9. What are 5 digital technologies that can improve a person's quality of life?	answers vary e.g. smartwatch, phone, braille,3d printing
10. What does CPU stand for?	Central Processing Unit
11. What does ASCII stand for?	American Standard Code for Information Interchange
12. How many characters does ASCII have?	128
13. What is an advantage of social media?	worldwide communication
14. What does AI stand for?	Artificial intelligence
15. Name one 8-bit game.	answers vary e.g. Mario, pacman,zelda, space raiders
16. What happens when an audio or image is compressed?	smaller file size, lower quality
17. What does www stand for?	world wide web
18. Name 5 social media.	facebook, twitter,snapchat,instagram, tiktok etc
19. What digital technology can you use to read the time?	phone, clock,watch
20. What is a pixel?	a picture element or square of colours that make up an image on a computer screen

 

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