There has always been 2 forms of 30 children at my DCs school, but as of two weeks ago, my DC's class has a new addition, and they now have 31. Nobody has left. I know in reception classes, if a parent can prove there was an admissions error, they can go over ICS, but could anyone tell me how this could happen in a Year 1 class. They're not the first child to join mid year, but before, someone has always left first, and there has been 30 in each class.