My wife is an elementary school teacher, and for the past several years has been on the school's committee that places students on IEPs (Individual Education Plan), and gets them extra help via special ed, resource, or aides, etc.

She knows very well the symptoms of ADHD, and in any given years has one or two students who she suspects may have either a learning disability or undiagnosed ADHD. Unfortunately, because of liability concerns, it is drilled into teachers that they are not allowed to even suggest that a child may have a problem that needs to be tested. In parent teacher conferences and in emails home to parents, my wife will sometimes try to highlight the symptoms she sees in hopes that the parents will get their child tested, but even that is skirting the rules.

Granted, my wife has only had three students that she believed had a more serious case of ADHD. One, the parents had had the child tested and he was diagnosed, but the parents refused to follow through with treatment.

Still, it's a difficult problem, and ultimately it falls on parents to be involved with their child, get them tested if they have suspicion, and ultimately do what is right for their child.