didactics vs educational activity

didactics and educational activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
didactics	Yes	No	No	No
educational activity	Yes	No	No	No

As nouns, didactics and educational activity are synonyms defined as:

didactics and educational activity: the activities of educating or instructing; activities that impart knowledge or skill

Other synonyms of didactics include education, instruction, pedagogy, teaching.

didactics (noun)	educational activity (noun)
the activities of educating or instructing; activities that impart knowledge or skill	the activities of educating or instructing; activities that impart knowledge or skill