It depends on the instructor.
I had 2 instructors as well. My first one barely taught me anything. And on my first lesson with him it was just talking to me about everything. Then i drove down a straight road for 5-10 minutes (where there were barely any other cars).
My second instructor taught me a lot more. It was slightly different in that id already had some lessons with my first instructor by this point so i wasnt a complete novice. Plus he wanted to see what i already could and couldnt do. But once id gone through a few basic bits, i drive round, practicing pulling away and stopping, driving round different roads, corners etc (i.e. not just straight roads).