Could someone give me the reference/regulation for determining the placement of children into classes? As well, I'm interested in the practice of leaving the classes formed in p1 unchanged all the way through primary school. At my school, class placement is determined by the child's birthday, so you have 1 class of older p1s and one class of younger p1s. Why is this? And why do the classes not get mixed up each year? Who benefits from keeping the classes the same? Your thoughts/comments are welcome.