'Of course the student will know what technique they will be doing they will have sat through a brief on it'.
I'm not sure about that. When I was doing my PPL training there was NO briefing before a flight (admittedly this was on Saturday afternoons when the place was manic).
In fact the only proper ground briefing I got was for PFLs and that was only because I was having trouble with them!
To find out more detail, I used to visit the airfield on a rainy day and grab an instructor.