Setup and use Screencastify
See below for a how to on setting up and installing Screencastify. In Addition you can also checkout the video...

Direct browsing access to YouTube will be blocked for all student accounts effective starting third quarter. This decision was made to minimize distractions during instructional time and promote a more focused learning environment for our students.
Students can continue to access YouTube videos via embedded content in
Google Classroom, Slides and Docs/Forms.