How to be a successful English teacher at Jr. High School

Last class, I saw a great English teacher. I was very impressed by his words. He said, "Teacher's work is changing students! ". It' s very interesting idea and I think it is more important thing for education. He talked a lot of things about junior high school. I think junior high shcool is most difficult to teach. They have various worries and are awkward age, so we should treat them carefully.
I learned how to be a successful English teacher in his lecture. It is important to understand the students and teaching materials. We can' t teach something without understanding them well. It will makes more wonderful class.
Understanding and using materials are also important. Teaching way affects student' s English skills. If we teach English with interesting, the students would like English. We should think out how to teach it to students.
I think teacher is very interesting job. I need to do more experience to be a teacher. I hove to study about education more, and I want to increase people who like English!