Just as the title says, I'd like to know the difference between 先生に話す and 先生と話す, since they are both correct (if I'm wrong please correct me)
1 Answer
私は先生と話す means "I and the teacher have a conversation", so they talk to each other".
私は先生に話す means "I tell something to the teacher", so only I speak and the teacher listens to it.