How to be an effect Karate Instructor

In order to be an effective Karate Instructor, you need to recognize that not all kids are created equal.
You also need to ask your self, how many brains do they have?

For our purposes (the teaching physical skills  in the form of Karate mainly to children) the answer is 

Two.

Yes,  two brains and no not Left and Right Hemisphere.

I'm talking about the conscious and subconscious (or unconscious) minds. ("Unconscious" in Martial Art circles, tends to involve a short period of sleep just after you receive blow to the chin).

It is very difficult, but very important for us to know this and make sure the kids know this as well.. I believe however that it is an important concept. 

We ask that children learn, remember and be able to recall a piece of behavior or knowledge, whether it be a specific movement pattern in the case of Martial Arts  or the accurate history of the country in which you live, but if we often don't explain to children just what the learning process involves and then they can get frustrated, with low self esteem and end up trying very hard, but do the very thing that prevents then learning effectively.

Young Karate Kids

As I see it, when we learn something new we use our Conscious brain, we think, we concentrate, and focus on joining what we don't know to what we do. We use up physical energy in the brain, its a slow process and feels like hard work.

Eventually if  we concentrate, focus and take the time required we start to assimilate the knowledge into our automatic storage device, our Subconscious.

As adults, using the Conscious mind to teach the Subconscious mind, is a concept we can grasp, as children its a bit tricky.