In regular public schools, you teach to the middle of the class. Only about 50% will benefit from the class. The higher level students are so bored, you can't do much to challenge them, and the one struggling, you used to be able to offer tutoring for them after school but even that has been farmed out to people looking to make a fast buck off of the government.
I am glad to see programs like Running Start available to higher level students. It is program that allow high school students to complete the requirement for their A.A. degree when they graduate high school.
Running Starts one Graduates HS at 18, has a Bachelors at 20, a Masters at 22 and a PhD at 24-29.
Now if can get a program to increase our graduation rate, which is currently at 69%. Of those who do graduate, only 62 percent of graduates can read and write English at grade level. As a nation, our school system is broken. We need more people to fix the problem, instead of politicians who do what looks good during re-election years.
It also means we have to look at the children, outside of school life and be proactive to help them.
It is not possible given our current school systems. The parents do have to be involved as previously mentioned. However there are many kids who do not live with their parents. Instead they live in group homes, foster care or other state institutions.