Oh the poor thing sounds awful for him.

I have no experience with what kids do or are expected in prep but that sounds really mean to write on his work!! The kids in prep are between 5 and 6 they of course wills scribble!!!!!!! They have been at school only a few months not years!!! Maybe the teacher is used to grade 5 and 6 rather than age 5 and 6.

Hope tomorrow is a better day xoxo