We've great news! Multiple people can work together to create a presentation. To share a user to real-time collaboration, follow this step-by-step guide:
Open the teacher template in Google Slides.
Click the «Access Settings» button.
In the pop-up, select the «Allow access» option.
Choose a status for the user («Editor», «Commenter», «Reader»)
Copy the link to the file and send it to the users.