All the kids found out two days before they finished school last year, we also received a piece of paper with all the classes and teachers names on it and what room, how many kids in each class room (but no names of course).
We were sent home a notice in November asking the parents if they have any concerns about teachers and other students to return the notice with the names of kids you didnt want your child in with and reasonings, But they had to be very strong reasons. I have only done this once when my daugher was in prep, going into grade one, (a little boy was a thug

)The school strongly agreed.
Kim