The definition of an education record under FERPA is broad. It essentially refers to any record that is directly related to a student and that is kept by the University or someone acting on behalf of the University from which an individual student, or students, can be personally (individually) identified.
This can include: files, documents and materials in any medium (handwritten, tape, disks, film, microfilm, microfiche, etc.)
Written permission must be obtained from a student before releasing an education record, unless the request fits certain narrow exceptions. See Case's Academic Records Privacy statement.
When in doubt, assume that the item, if it relates to a student, is an education record and seek further assistance.