I run into AMERICAN teenagers all the time that can't count change without the cash register telling them what to give back. I talk to kids, that don't know simple things, but know how to ACCESS INFORMATION by computer, and are under the impression that flying a 747 on a simulator will enable them to actually fly the plane in reality.
I think the problem with the American education system, is that it has been liberalized by the government, to INDOCTRINATE, rather than EDUCATE, and has few redeeming qualities left, from it's more productive past.
American history has been diluted to the point of being unrecognizable in many cases, patriotism has been villainized, and sexual perversions are taught as NORMAL.
Also the AMERICAN FAMILY has deteriorated to the point, that moral values are seldom discussed, and character doesn't matter. This is demonstrated by our ruling class, commonly referred to as Republicans and Democrats.
Our education system is in trouble, our children are in trouble, and our country is in trouble, because of the "lack of values being taught not only at school, but at home. Foreign students do far better in our schools because they are better disciplined at home, and in themselves. Foreign students come not because of school quality, but because of school content, and available information.