However, the school is tuition-free because it is funded by the district, hence these are public school children.
The curricula are pre-approved by the state, through which all things are possible.
They somehow try (but fail) to sell the idea that this is good for the district because:
"...the charter school will be attractive to parents who home-school their children, or put them in out-of-district schools."you don't fool me...
Charter schools are not private schools OR home schools.