North American teaching tends to be by osmosis, if you expose the student to things enough times, some of it sinks in. In Europe a more structured building block approach was introduced in 1917. You brief, you fly what you have briefed, then you land and debrief. Conducting unbriefed lessons is a waste of the students time and money.
I disagree, I recently attended a flight school academy for FAA instructors and they gave very heavy emphasis to the building block approach to teaching/learning in the Fundementals Of Instruction course.