I guess the question is, what is that the gov't schools are interested in?
The government schools are interested in propagandizing the populace. Their structure is designed to discourage any challenge to government authority and to create workers, not thinkers. They are a social engineering tool which exists for the sole purpose of creating generation upon generation of cogs who will accept the state as a natural and necessary intrusion into their lives and who will see the state as the only legitimate solution to their problems.
Before the advent of mandatory government schooling we had a 97% functional literacy rate amongst the free people of this country, and education rates between 75 and 99 percent by region. Since then, the definition of functionally literate has gone from the ability to read and comprehend the founding documents of this nation, to the ability to fill out a job resume. And still by this new definition, less than half of american adults are functionally literate. 20% of high school graduates can't read their own diplomas, and these are the kids who succeeded in the government school system.
Since the inception of mandatory government schooling, literacy rates have declined, basic knowledge has declined, and standardized test scores have declined. And this is based on the government's own numbers.
The government schools are not, and have not been since their inception, about education. They are about indoctrination. Nothing more.
-Rob