An entity that is used as part of an Educational Activity (e.g. a textbook) or that describes (e.g. a lesson plan) or records the Educational Activity (e.g. an audio- or video-recording of a lesson).
Entity that is used as part of an learning activity (e.g. a textbook) or that describes (e.g. a lesson plan) or records the educational activity (e.g. an audio- or video-recording of a lesson).