I came across this article and it's an extremely interesting read if you're a teacher or you have kids. Or even if you're just insterested in the learning process.
Then I ended up watching this TED talk by Sugata Mitra http://www.ted.com/talks/sugata_mitra_build_a_school_in_the_cloud.html
In a way, this is how I grew up. My dad is an upholsterer, my mum has been chained to a sewing machine since she was 14. Neither of them has been to college or even high school. Yet in our home my brother and I have always had access to informations (mostly random books, encyclopedias, TV and a heavily used library card) and no parental control at all.
We were encouraged to do our best, but never helped much in defining what this was supposed to be. My dad is a true believer in the "figure shit out" approach to life.
I remember asking my parents about stuff and them just answering "I don't know, have you tried looking it up?" and then excitedly reporting back to them my discoveries while they kept working on reupholstering a sofa, sewing some curtains or an ottoman cover.
When I was shown an Internet connection in 1997 I was blown away: I could access all sorts of informations, instantly, for next to free.
And don't get me wrong, I still spend an indecent amount of time abusing this privilege by watching at cat videos, but this is how I learnt how to take photos, how to introduce myself in japanese, how to change oil in my car or how to talk to strangers behind a monitor in a language that is not my own.
Stuff like this excites me immensely. I strongly believe that teaching what you know to others is great, but teaching others how to explore informations and try to come up with answers to questions you can't yourself answer to, so that they can surpass you and outgrow you, is so much bigger.