Do exactly the opposite of the US.
While that might not be written anywhere, that is literally the case.
Finland’s Teacher-Student ratio in secondary school? About 12-1.
We keep pushing for the “system” to “educate” our kids earlier and earlier–trying to push day-care and head start programs to kids almost from birth. Finland starts primary school education at age 7.
Primary school and Secondary School are in the same buildings so as to retain continuity and not create destabilizing and educationally harmful transitions where the “learning” becomes all about the transition–how to manage your upheavals.
Often students stay with the same teachers throughout their academic years–creating a stable, “home-like” environment.
Why can’t we do this?
Instead we encourage instability and constant transitions. And the reason? We want to mimic our primary value system, Capitalism.
Stability and fellow-feeling are not conducive to capital plunder. We might actually find that offensive if we believed in the wholeness of our communities and our common bonds as human beings living together.