When I was teaching teachers and parents, either for classical education school start-ups, or for home schooling talks, I used Dorothy Sayer's The Lost Tools of Learning-a must for all home schooling parents.
http://www.gbt.org/text/sayers.html
Also, of late, I have been running into more and more young Millennials in religious or lay orders, or seminaries, who have been home schooled.
That is no accident.