Your solutions would no doubt improve the school systems in those neighborhoods where the parents were already involved and the teachers and administrators haven't been "ground down by the system". I won't argue that at all. Nor will I argue that the our school system is not the best (being based on the Prussian system or to better serve an agricultural based economy).
Most of the "decent" school districts are turning out plenty of intelligent graduates (myself and I'm sure you are included). The problem with certain school districts is that no amount of money, better teachers, teaching systems or policies will change the system until the parents genuinely care about their children's education.
My point is that the bottom of the education curve is a repeating cycle of parents that don't care enough about their children to break this cycle. I don't believe giving them a guaranteed monthly income is going to change anything.