Talk to any public school teacher who works in an intergrated setting.
The following will come out: too many black kids come out of an oppositional culture. When faced with demands from a white teacher that they actually try, they won't.
Too many black kids have terrible attitudes about education; black kids who do achieve are called 'sell-outs'.
Too many black kids lose their books and materials; when they come to class they are not prepared.
Too many black kids come to class late if they come at all. This is said by the professional apologists to be a 'cultural' issue. It's not about being uncaring or uninterested.
Too many black kids miss too much class time. Everything a teacher does for the rest of the class he/she has to do again for them.
Too many black kids think society owes them a living. They have a welfare attitude; if they can't get a job someone will/should give them money.
Not all black kids; I didn't say that. But, just too many.
You just stated what everyone I have ever met that works in public schools have been saying. Unfortunately, there's got to be some truth to it.