I am a model, actor, voice-actor, and (of course) English teacher located in Tokyo, Japan.
I have taught every age and demographic over the past 6 years. I started as an ESL teacher's assistant at an elementary school in the States. Then became a full blown teacher in Vietnam
My favorite age to teach are 9 year olds because they are super げんき & intelligent, but still young enough to be eager students. High school kids tend to worry too much about being cool that it's boring to teach.
But that's in person. As for online Skype lessons, I prefer adults who just want to keep their English up to par. That way we can have very natural and interesting conversations. Usually the subject matter can be more engrossing with mature adults. (Having a pretty woman as a student neve