Ithaca This is what went on under the surface, when I was with my teacher. I often didn't understand why she was having me do certain things, but now I realize she was systematically building up my skills and technique. If only she was still alive, and could take me back again! Such a pity I had to quit.
It sounds like you had a good teacher. I've also been thinking about what you wrote since I read it yesterday. There is what a teacher stresses. In a lesson she may point out a given skill or habit for you to practise while working on the piece: as a student, esp. a young one, you may still end up focusing on the piece. The teacher will be listening and watching next lesson for that skill or "thing" to see whether it's starting to come in: you'll be hoping she thinks you are playing the piece well. When she is especially pleased may mystify you because you're on a different page. You will probably also have absorbed some of those skills without knowing it. That's one angle of it. It's a kind of broad general thing that happens in a lesson.
The other side of it is how we practise. What do we actually do in a period of 7 days, say, from each day to the next. What do we do within that practice time in sessions, or mini-sessions, or several smaller sessions. This part was probably never touched on and it would be a different side.
Ithaca In the video below he (I think) models how to develop a piece by playing it staccatissimo, legato, heavy portato, light portato, etc., before really getting into it. So, I have a vague idea of how the approach is meant to go.
I think he is showing different ways you can play it, so that the student experiments with all or some of those ways. He then shows another angle of approach. I don't think (?) that it's a lesson giving a sequence of do this, then this, then this. Though if he has a particular student, he might indeed have a sequence. But above all, we're not just playing the piece, or sections of the piece - we're doing all kinds of things. Woroniki also stresses experimenting, finding what works with your body.
A while back I shared a video summary I had made, in a PM. There were about 5 different things. I practised those things for just a few passages, to get the feel (esp. since the main structure repeats). When I worked on the various measures later, I went through those 5 or so different things, and sometimes reviewed them. If you do a search within the site for "Ocean etude" you will find about 5 video lessons, plus one performance. Some focus on a concept that was introduced in another one. Some tie a concept to another concept. One involves playing block chords: another involves the individual notes. To get an idea of what he teaches regarding one single piece, this search will show different videos, doing different things. That is part of it too.
At the same time, his videos will be about concepts of movement. So with the example of the Ocean etude, it may crop up in a video about a given concept, along with other pieces. The focus would be on the concept more than on the piece. But he also addresses piece.
(Well, that was clear as mud) 😊