Here's some worthwhile thoughts from Doug Phillips of Vision Forum:
"As R.J. Rushdoony has pointed out, 'Education is inescapably a religious discipline'...while many Christians have correctly focused on the religious nature of the content of education, they ignore the fact that the Bible also speaks to the methodology of education. Methods are not neutral. The rise of the home education movement is not merely a response to the failure of government education; it is an affirmation of a distinctively Biblical approach to both the methods and the objectives of Christian education.
"Unlike the peer-driven culture of the classroom, with its unbiblical approach to age segregation as a basis for training, home educators benefit from the one-on-one tutorial approach which allows parents to walk alongside their children while communicating faith, virtue, and knowledge, in that order. Home education, with its emphasis on relationship-driven training, is a distinctively Hebrew approach to education, while the modern classroom, with its emphasis on efficiency, is a distinctively Greek and pagan approach to education."