How to quickly get into 2D drawing with OpenGL+OpenTK?

Question

.NET

I understand the code of a 2D game, OpenTK is used for drawing.
Before that, I had not come across computer graphics and scary words like batch, transform, vertex baffle me. How to quickly and rapidly fill the gap in knowledge?
According to Google, there is a good book OpenGL SuperBible, but its size scares me. If anything, at the moment it will be enough just not to be dumb at the sight of terrible CG specific words (i.e. at least have a rough idea of ​​what it is and why it is needed).

Answer 1

Well, here the algorithm is actually very simple:
I came across an incomprehensible word / term -> Googled it -> I figured out how to use it / did a couple of exercises on its application -> Read on.