Stratford News Public elementary school’s back in session in Perth County SHARE ON: Casey Kenny, staff Tuesday, Feb. 11th, 2020 Public elementary and high school in Perth County to be closed Thursday. (Supplied by AMDSB) It’s back to school for public elementary school students in Perth County. Members of the Elementary Teachers Federation of Ontario took job action on Monday and Tuesday in the Avon Maitland District School Board. That meant students in Kindergarten to Grade 8 were out of class both days. Public high schools have been open all week.