[re: 'strewing'] When I was growing up and when my dc were small, their was a technique called common sense.
Yes I agree! :o I read about strewing the other week and thought well... we do that. Duh. (My DCs aren't unschooled, by the way, we have a bit of structure for core subjects in particular, and lots of projects/topic work which can be chosen by us or the DCs, in response to questions they ask etc.)
I only mentioned the 'technique' as others were talking about how unschooling could possibly work and not limit the child's experience - it can work well, I think, but I think while some unschoolers are very passionate about providing lots of inspiration, opportunities etc, I do also know some unschoolers who reject even that as it's not child led enough. I can't personally get on board with the latter, and it's definitely not the norm in our local HE community (our approach is pretty average round here).