This sounds like a bad teacher to me Belinda. In a class of 4 (4!) I find it astounding that the teacher is being so biased. It should be easy to give all equal time, praise, development etc
My class is 25, so there are always going to be some who get more attention than others during any particular lesson. I try to work with different children each session to balance things out. In a group of 4 there is no excuse for favouritism. Personal feelings about a pupil must never get in the way of professional practice and proper teaching. If your DD's work is exasperating (surely not?) the teacher should be giving teaching
not disfavour. That is their job for heaven's sake.
I have 3 in my class who I
well they are very hard to like, but a teacher must never never show it to the pupil.
In fact I have gone so far overboard in hiding my dislike in one case, that his Mother keeps telling me how marvellous I am with her DS and how he loves working with me
It is my duty to teach all of them regardless.
How does the bias manifest?
You may need to go and talk to yon teacher about it rather than let things fester.