Writing prompt: My Favorite Teacher

Student essay:
My favourite teacher
Dear Henry,I'm glad to hear from you.I got to know that your favourite teacher is Mr.Green.I'd like to tell you something about my favourite teacher.
She is my chemistry teacher.During my first month at High School,I met many new teachers and students.But the teacher I like best is my chemistry teacher.She is not only strict,but also warm-hearted.I failed in the first exam.She encouraged me a lot,and helped me with my study as well.What's more,I love her teaching methods very much.Because of her help,I make great progress now.I think she is one of the most fantastic teacher I have ever met.I felt warm and aggressive with her.During the three years we will struggle together,we will get on well with each other.I love her so much.
Yours,Li Hua

Corrected essay:
My favourite teacher
Dear Henry,
I'm glad to hear from you. I got to know that your favourite teacher is Mr. Green. I'd like to tell you something about my favourite teacher.
She is my chemistry teacher. During my first month at High School, I met many new teachers and students. But the teacher I like best is my chemistry teacher. She is not only strict, but also warm-hearted. I failed in the first exam. She encouraged me a lot, and helped me with my study as well. What's more, I love her teaching methods very much. Because of her help, I make great progress now. I think she is one of the most fantastic teachers I have ever met. I feel warm and motivated with her. During the three years we will struggle together, we will get on well with each other. I love her so much.
Yours,
Li Hua