The ground school in the FTU is basically a organized in the 17 (3 hour long) presentations that bring a lot of concepts that barely scratch the surface and not all have in my opinion too much relevance for the PPL training (we all know those topics, I don't want to get into it).
I always make sure I get my money's/time worth and ask a lot of questions in detail during the ground school sessions. I am concerned quite a bit and interested in the knowledge that will help be a safe pilot.
My flight instructor is suggesting we take some ground non flying classes with him to cover again some topics.
I did not see in the CARs that additional ground school is necessary. It seems like a waste of time and money. I read a lot about flying on the net and the books (stick and rudder, how and why pilots die, etc) and am totally focused in the plane and in my "chair flying" time.
I video record my entire flight lessons and analyze (eat, breathe, .... flying)

I believe he and i can discuss these simple principles pre/during/post flight lesson and not spend hours jerking around bernoulli's principles, cabin heat controls, carb, etc. I want to focus on things that are in the air (stick and rudder my brother). The rest of the science I can read POH/practice in the plane on ground on my own time.
What do you guys think about the value of the additional ground school led by the flight instructor, maybe I am missing something since I am still a noob (however not dum bass)?
Cheers and happy thanks giving,
Dan