There are two options for Live streaming
Internal livestreams, ie to anyone who logs in with their school account
If schools have the Teaching and Learning upgrade or Workspace for Education Plus they can begin live streams from their calendar.
Steps to enable are
Create a new calendar event and add the people who will be live in the call or presenting, you can add a USB webcam if you want to stream from a camera too.
Add the Meet link then below click live stream as shown here -> https://support.google.com/meet/answer/9308630
The live stream link will be created and this can be shared with the school however links are normally shared.
The key point here is to share to livestream link, not the calendar event.
A really easy way to do this is to embed the live stream link into a google site. Share the Google site link once and then any new livestreams can be added to this site
This is the process for a within domain live stream, you can add other domains to your allowlist (ie add other schools in your cluster or Kahui Ako) and they can watch too.
Tip: If you’re a Google Workspace administrator who manages Google Meet for your organization, first allow live streaming or set up Cross Domain live streaming.
Outside of Domain Livestream ie anyone who has the link
OOutside of domain live stream is nwow a released feature in Teaching and Learning and Workspace for Education Plusu
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However an excellent 3rd party tool for Meet users is Streamyard (https://streamyard.com/) which has a free tier and a paid tier.
This will connect your meet call to youtube as well as other platforms. https://streamyard.com/multistreaming
Steps to enable are;
Create a new Calendar event and add the people who will be live in the call or presenting, you can add a USB webcam if you want to stream from a camera too.
Then setup your streamyard stream time (this will create a livestream link to post to your Google site as above), begin the Meet call and get everyone ready then go live via Streamyard. This will begin the youtube live.
You can then share your meet screen to streamyard and in Meet choose spotlight mode and only the speaker will appear on the call.
Information on how to set up and use streamyard can be seen at https://streamyard.com/resources/docs/getting-started/ and this includes starting a simple stream where you may just have 2 presenters and no screen share.