Not my onions, but I do wonder, so...  A 14 year old self-described "radical unschooler" happened to mention to me that she is thinking of learning some math, because maybe she will one day need more than just basic addition and subtraction.  I confess I was astounded that a 14 year old had not done more than very basic maths. I understand the philosophy behind radical unschooling and the belief that kids will learn when they want to, but is it realistically possible for a kid with almost no mat