Q. Can someone please explain to me what unschooling is? Do you follow any structured curriculum?
A. Well, it's kind of hard to explain in a short comment, but basically, it is trusting in the natural process of learning. Just like we don't use a curriculum or special classes or lessons to teach our kids to roll over, crawl, walk, talk, feed themselves, etc., that idea that "it will happen when they're ready" extends into the school years. We live as if school didn't exist.
Not that it means walking away and leaving our kids to cope on their own. Just like their early years, we provide things they might be able to use (books, documentaries, experiments, games, clubs, our knowledge, etc.) to gain that knowledge they seek, but as each individual is unique and brains develop at their own pace, what works for 1 child won't necessarily (or likely) get the same results as the next child. We facilitate and support, but don't force, have requirements or point them in a specific direction, etc.
It is so much deeper than that, that I'm afraid I haven't done it justice, but I'm always happy to answer questions. :) I also have groups I can recommend, but all the groups I am familiar with are whole-life-based unschooling, rather than academic unschooling. Which, I'm still happy to pass along, if anyone is interested. :)