The Federal Educational Orivacy Rights Act prohibits public school disclosure of student information, such as grades, physical exam results, disciplinary records and other "non-directory" information. So, the short answer is that the school or it's agent, a teacher, should not be sharing this information with a third party. Things however, get murky when that third party is also working at the school and may have routine access to such information. I doubt there's a violation in this instance. Instead, you should focus more on why the school has failed to provide this information to the father and legal custodian. I would contact the school's superintendent to discuss these concerns. There may be a reasonable explanation. The school may need a copy of a court order, if one exists, regarding dad's primary and legal custody of the child.
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