Why is the word school used here. wait I know why, "Schooling" means teaching. So a church is a school.
But school is a misleading word here, leading people to believe a place of religious teachings, is a place of practical teachings. Still a church :p its a week long "Sunday school" and 30 in thousands lol. My nieces and nephews all go to a religiously funded practical educational school. I pick them up, meet their teachers.
It seems these "schools" are just a churches, that have extended Sunday school to a full week, to remove the word Sunday from it, making it seem less churchly and more educational. Because one day a week isn't enough to brainwash children.