As long as they're indoctrinating the children into their culture of death, the least they could do is keep them alive long enough to finish the brainwashing. That way, at least the kids have a small chance of living a normal life.
OR, the country could accept school choice, so parents can put their kids into safer and better schools - away from the union influences and it's agenda.
There are tons of web resources - I don’t see any reason to send kids to school on a daily basis.
The teacher’s union would throw a hissy fit, but you could rotate students in for “specials” (art, athletics, whatever would be cheaper done in bulk or need group work)
You could lay off teachers in droves, as fewer would be needed. Taxes would decline (well, maybe not, but theoretically).