Uz - is she whinning face to face? or in the notes that they send home for parents?
I would write and talk to her about you don't see this behavior at home.
Also talk to you child to get some perspective on what's going on in the classroom
She is whining face to face NJ and kid is always saying that why teachers are so mean?
On day I remember she said this is the face only mom can love.
PS. I asked him many times he is not alone there are some consequences like once some child squished his lunch and then he reacted .