This video regards to online classes etiquette. 

As an online student at Achieve Virtual, communication is a bit different than in a face-to-face setting.  

We pride ourselves in providing several opportunities for social interactions, but the difference is that most communication is via written text in an online environment.

Because this means you are missing body language cues and immediate feedback from your “listener,” it is very important to understand some common rules for good online etiquette.  

This ensures that the message you intend to convey is received correctly.

Quoted from: https://achievevirtual.org/7-rules-for-online-etiquette/

video Souce from: https://www.youtube.com/watch?v=4OYfER8en2E