If you would like to create QR codes for your class here is a workflow that works for me.
Using the Chrome web browser install the ShortenMe chrome extension. Click Here
Create a new Google Slides presentation from Google Drive. Choose a white presentation. Since I am going to print the slides, I choose the slide size to be the “Standard 4:3”
I am going to make each slide a large QR code. Choose the blank layout for each slide.
Go to the websites you want to direct your students to via QR code. Oftentimes this is a YouTube video with basic skills tips or advanced tips to extend the learning.
Click on Extension
Click on the QR Code
Resize QR Code
The QR code will be small on the slide. Use the image resizing handles to allow it to fill the entire slide.
Insert Blank Slide
Insert a blank slide in the Google Slides presentation and insert another QR code. Repeating the process of going to the website, clicking on the extension, clicking on the QR code, inserting image by URL in Google slides allows you to quickly create a collection of QR codes.
QR codes are made to be printed. They allow mobile devices to scan and link to a webpage or information. Print the Google Slides presentation and make these QR codes posters on the wall.