Around a month ago we were just revising over tenses and he called he to stage( this is a new school so he didn't knew I stuttered) and I explained that thing he gave to me without stuttering. I was mind blown. Then around 20 days ago he called me once again to tell about robert frost becoz that was the HW and I stuttered in the starting 3 to 4 words and the teacher gave me extensive sympathy which I didn't need and exaggerated the situation. So from that day she probably knows I stutter. And I am great In Academics and she is also very good.