to write a mail to my teacher...

[Salley]

I want to write an e-mail to a teacher of my, whose name is Nancy Zhang.She has only gave us a couple of lessons and she doesn't know me. Shall I begin with "Dear teacher" or "Dear Nancy" or "Dear Ms Zhang"?

Thanks in advance!

[bhaisahab]

I want to write an e-mail to a teacher of mine, whose name is Nancy Zhang.She has only given us a couple of lessons and she doesn't know me. Shall I begin with "Dear teacher" or "Dear Nancy" or "Dear Ms Zhang"?

Thanks in advance!

I would use "Dear Ms Zhang".

[Rover_KE]

Definitely not 'Dear Nancy'.

Rover