I have to confess my real experience.
Mr.Tani, your lesson skills aren't worth to say something. That's not enough to analyze as a subject teaching.
It was my rookie year. I was a homeroom teacher in the 3rd grade. I hoped to demonstrate my class voluntarily as a study session. And He came to our school as a lecturer from the famous publication company. I guess he had enough experience and had adequate abilities as a supervisor.