DD is 11, and quite independent and mature. Unschooling for her looks sort of like this: (just an example of her activities, not really a day in the life)
We saw the movie, "The Queen" and DD asked several questions about the structure of British government; parliment, prime minister, and royalty, division of power, etc. I didn't have a clue (we live in the US), so she searched on the internet and later we went to the library. Now she is teaching me! This interest lasted a week or so, and she learned more than any 6th grade class would ever learn. Other subjects of interest have been ancient Egypt, anorexia nervosa, architecture, and I don't remember what all else.
She tends to have these intense interest-attacks every month or 2. Sometimes she writes out "reports" about the subject of her interest. But these are not meant for me to see, or anyone; I think it is that she likes to see information in a neat structured bundle. In the process of these projects, in addition to learning about the direct subject, she is honing her research skills, reading adult material, and I think subconsiously exploring career options.
Weeks might go by between projects, when little visible acedemic activity is seen. During these times, she watches a lot of TV, listens to music, cooks, and rearranges the furniture (don't ask). She is absolutely disinterested in any classes or activities offered to kids through the homeschool groups, recreation department, or anywhere else. She watches and discusses the news and current events from a very mature, insightful perspective. YoungSon, DD, and I love museums, so we go once or twice a week to somewhere interesting. I do not "teach" on these trips - I will answer their questions, or share my excitement over something that interests me, but they are free to absorb whatever they like from the atmosphere. I also have a home business, and DD helps with some facets now, more when the craft show season gets started again in March. I am thinking of having her keep the books for the business (with much supervision!). She also tends to have a craft project going most of the time, generally based on some sale at the fabric store or a thrift store find.
The Teenage Liberation Handbook
is great, as is anything by John Holt. For me, the basis of this whole approach is trust - that DD will find or ask for what she needs. So far, so good!