Didactic characteristic facts

intended to teach, particularly in having moral instruction as an ulterior motive.

"a didactic novel that set out to expose social injustice"

synonyms:

instructive, instructional, educational, educative, informative, informational, edifying, improving, preceptive, pedagogic, moralistic

"the reforming, didactic function of art"

in the manner of a teacher, particularly so as to treat someone in a patronizing way.

"slow-paced, didactic lecturing"