The head teacher is the easiest job to exercise as a teacher.
If you are a subject teacher, you can leave directly after class and homework. But as a class teacher, whether in class or after class, as long as it is related to the students in your class, the class teacher should deal with it at the first time. From this perspective, the post of head teacher is indeed a post that can exercise a teacher's professional ability and language expression ability.
When you first started as a class teacher, you might feel that being a class teacher is very complicated and it is difficult to control the "devil in the world" in the class; But after more than ten or twenty years as a class teacher, you will find that your level of managing students is getting stronger and stronger, and your ability of language expression is getting stronger and stronger.