Because the message page does not update without a page reload, it doesn't seem to be sensible to stay on the message page after sending a message. It might give the student the impression that the teacher's response will popup if they wait in that page. That is, it is currently giving the student the impression they are on an IRC channel.
I think it would be better to immediately bounce the student back to the page from which they clicked on the Message My Teacher link.
Because the message page does not update without a page reload, it doesn't seem to be sensible to stay on the message page after sending a message. It might give the student the impression that the teacher's response will popup if they wait in that page. That is, it is currently giving the student the impression they are on an IRC channel.
I think it would be better to immediately bounce the student back to the page from which they clicked on the Message My Teacher link.