I like the teacher in case 1. I don't like the teacher in case 2.early application seems to fit well.
Case 1:
A: Dear master! I want to learn the technique that you just did on me.
B: In order for you to learn that technique, you will need to build foundation for ... and ...
Case 2:
A: Dear master! Why do I need to spend all day just staying in my horse stance?
B: One day when I teach you how to fight, you will need this kind of foundation.
A: But you haven't taught me any fighting skill yet.
B: One of these days, I'll.
A: ...