As in Radical Unschooling, that is. On the Family Radical Unschoolers Network--link in sidebar--we're asked, "What does radical unschooling mean to you?"
One member wrote that for him,
"The definition of what's "radical" is its distance from what's considered the norm."
"That's one definition. My favorite is this: 1. Arising from or going to a root or source; basic."
I love that! And I saw that "radical" can also be defined as "forming a basis or foundation."