The expression of intelligence in black schools is seen by students as "acting white".
That is a real factor. I would like to see the networks and CSPAN, etc. come in with their cameras and cover things like these quiz bowls. Then we could see the breakaway to Sharpton or Jackson to get an explanation for this lack of learning. By the way, these schools are virtually totally administered and controlled by black educators and black school boards. The public school system and the parents of these kids have failed them, but we know who they like to blame the failures on.