How can learning be best effectuated by a teacher/trainer

We are able to learn things on our own but with a teacher we are able to learn faster and more correctly. As a baby learns to walk they are able to take steps on his own. The baby will eventually be able to walk on his own without any help. The next thing is learning how to run. If the now child learns how to run on his own he may develop many bad habits and not become as fast as he needs to be. With help from a trainer he will be able to develop skills more quickly and the correct skills.
As a teacher helps a student develop the skills necessary to succeed the teacher can step back and watch student grow and develop but will still need to step in to correct same errors.

What is Learning?

There are many ways and things to learn. I think the basic definition of learning is acquiring knowledge. I think you can acquire knowledge by experience and by information gathering. Experience is like riding a bike, you can read all you want about riding but until you do it you wont really learn how to ride a bike.
Then there is learning that takes place by gathering information. When learning how to get better at things you need to read and research to polish off the skill. I think that we need to be open to both types of learning and if we limit to just one type we are going to come up short.