"That’s like half of what the government spends per student in regular public schools" I had never heard of Jiechu until just now, but you could achieve this 5

"That’s like half of what the government spends per student in regular public schools" I had never heard of Jiechu until just now, but you could achieve this 50% cost reduction simply by having class sizes closer to those of China's high schools (~48 per class) than those in the US (~24 per class). This is before you consider other potential cost savings, e.g. - contract teachers can be cheaper than unionized employees - no costly central bureaucracy