In fact the evidence consistently shows that direct instruction is by far more effective than any other major pedagogical framework.[1] And this literally involves the teacher reading from a pre-packaged script.
One size fits all education is literally the propagation of inequality.
Stop bending over backwards to please parents. Punish and remove students that can't behave in the classroom. Culturally reward students that excel academically.
Also the worst parents are in the richest areas.
Teach in poor areas and student behavior is going to be your biggest issue because of bad parenting
The rich parent is the one who is going to show up after the teacher disciplines a kid insisting their little darling would never do such a thing.
Rich parents can be bad, but it's not the same stress as dealing with students raised in environments that have completely normalized violence
No children are all in a controlled environment with the same access to after-hours resources as all their peers. They do not have to deal with whatever home life fate dealt them and can focus on their education. They will all have access to the same nutritional standards. They will have access to counseling. They will have shelter. Move them around the country randomly every year or two to minimize local influences.
Of course, aside from parents not being particularly happy with the idea of not seeing their kids all year, the biggest problem with this is that it is far too meritocratic and equal for most of the wealthy to stomach, and they'd be the ones largely paying for it.