She corrected my grammatical mistakes, which was really good.
However, she didn't meet my lesson request, and how she reacted to my opinion was negative.
In the discussion, surprisingly enough, she tried to refute(論破) me.
Good points:
She corrected all of my mistakes in last few mins.
She listened very carefully what I said, It was helpful.
Bad points:
She corrected an expression which I was taught by other teacher.
He is native speaker, so I probably think it just depends on region or country.
I know I don't speak English perfectly, But other teacher get what I'm trying to say
and help it, even she doesn't understand.
I usually enjoy talking to teachers, But I couldn't feel relaxed in this lesson.