These activities will help students connect what they are seeing with what they already know about the topic and prepare and help them to understand the authentic content of the videos before they watch them.
These activities will help your students respond to the video as a whole - as we do in our first language - rather than study it discreetly, as students usually do in a foreign language.
In your first language, lots of writing tasks need to be planned before you put pen to paper. Drafting, editing and redrafting are a normal part of the writing process.