There are some things that they will learn
My kids are preschool, but they will be classically educated. So cursive, logic and latin will be learned. If the school does not cover it, I will afterschool. They will read and analyze the classics. We will cover world and US history using source texts. They will memorize a LOT and be capible of giving a recitation/dictation. High standards but will produce a well-rounded adult who can think, analyze, and reason, having the ability to study and learn any subject of their choosing.