The public posting of grades, either by the student's name, institutional student identification number, social security number, or any part there of, without the student's written permission, is a violation of FERPA. Even with names obscured, numeric student identifiers are considered personally identifiable information and therefore violate FERPA. Instructors can assign students confidential unique numbers or codes that can be used to post grades. However, the order of the posting must not be alphabetic.
Such things as progress in a course, deficiencies in a subject area, scores and grades on papers, exams, or even telling anyone that an individual is enrolled in your class are all examples of personally identifiable information that make up part of the student's education record. This information is protected by FERPA.
Students may grant their parents (or others) permission to access their educational records by filing a “Release of Student Information to Parent/Guardian” form with the Admissions and Records Office.