How to make a web page so that the administrator can redirect, scroll the user's page?

Question

JavaScript

How to make a web page so that the administrator can redirect, scroll the user's page?
Those. the task is this - you need to make an online class in which the teacher will control the page (go to another page, scroll to the bottom), and the student will be a passive observer of the web page (viewing video, audio, filling in text fields).
I can't figure out how to organize it...

Answer 1

Via websocket
Teacher <-> Browser Commands <-> Student