GIT is a command line tool although there are graphical tools available which use it.
In my opinion the best way to start with learning GIT is to use the command line rather than immediately using graphical tools.
Why is this?
Well a few reasons:
Comes back to my core values of learn things from first principles.
The command line tool won’t change
This will give you broader understanding of how GIT can help with many things like deployment.
I can teach long lasting understanding of GIT through the command line and know that I teaching first principles.