The only reform bold enough to "fix" our education system is to stop treating everyone like they're college-bound. They're not. College is not for everyone. It should be an OPPORTUNITY for everyone, but by 8th grade it is usually very evident whether or not a child is really, truely college-bound.
We need to put more emphasis on trades and vocational institutions. Rather than put everyone in the same general education highschool, those who are not college-bound should be sent to vocational highschools where they learn a trade.
Going through highschool, I remember that some of the best teachers were given to classes of students who were never, ever going to go to college. To me, that's counter-productive. If the kids had wanted to learn, they'd have done so the whole time and would not be taking remedial 9th grade English in 12th grade. The students who want to learn should be given an environment that fosters learning and intellectual growth. Schools are going the oposite direction, at least in California: they're cutting AP classes and forcing everyone (both those below the mark and those above the mark) into "college prep" classes.
My opinion is that we need to encourage those who want to learn and are willing to learn and to remove those who are not willing to learn. Send them (the ones that aren't willing to learn) to a vocational highschool where they can learn carpentry, automotive repair, welding, plumbing, etc. Those who aren't interested in general knowledge don't have to crowd schools and they'll learn something that will allow them to become self-sufficient, and those who want higher education will have an atmosphere more conducive to learning.
That's the only way to "fix" our school system.