I agree Monique, my mother has taught me so much!
Unless it is something I am truly interested in, I will not remember anything about it by the next day - sad but true. Another season why it is important to pursue careers that one is interested in! Tamlynn made some EXCELLENT points about some of that.
When I was younger I HATED reading and writing, all of that, nor was I very good at it. One day my mom wanted to read me a book before bed, I wasn't much interested about even having a book read to me - until she started. I became soo interested. Soon I didn't want her to stop and I ended up finishing it on my own.
Maybe it was just the subject of the book, but ever since then I have loved reading. (I think the book was actually 'Caddie Woodland'; see, I was even into SS stuff at that age) By seventh grade (11 or 12 then) I tested at a college reading level and was reading adult books (Ok, not THAT kind of adult!) - probably doesn't show because of all my typos and screw ups due to arthritis, but that doesn't affect my reading!
I think the most important thing I did learn from a public school was what not to do, that words could easily hurt someone so deeply. Obviously I knew that already, living in the household I do, but it was amplified much more, that not everything is all bliss.
And really, not all teachers who do teach are qualified. Sure, they have that paper in their hands saying so, but we all know how that goes. I had one math teacher who, when I needed help, said that if I could not learn the way he was teaching it, then that was my problem and that I would have to figure out how to pass on my own. I passed, but with a D.
Another teacher, a substitute Phy-Ed teacher actually, was very verbally abusive to the majority of the students. I remember at age twelve or so, after telling him that I could not swim and being forced into the pool, him swearing at me, sputtering and spitting in my face, as well as having racial slurs and very derogatory comments thrown at me, his entire head getting SO red. I cannot fathom someone having that much hatred for someone they do not know. If I wanted to put up with that I could have gone home!

I guess that type of stuff encouraged others somehow, but that just made me want to kick him in the balls and walk out.
Anyway, if I keep going I'd write an entire book!
I'll leave agreeing with Savingdogs' post "I think every child is individual and every family situation unique. There is no right way because children learn differently."