lecturing vs pedagogy

lecturing and pedagogy both are nouns.

Word	Noun	Adjective	Verb	Adverb
lecturing	Yes	No	No	No
pedagogy	Yes	No	No	No

As nouns, pedagogy is a hypernym of lecturing; that is, pedagogy is a word with a broader meaning than lecturing:

lecturing: teaching by giving a discourse on some subject (typically to a class)
pedagogy: the profession of a teacher

Other hypernyms of lecturing include instruction, teaching.

lecturing (noun)	pedagogy (noun)
teaching by giving a discourse on some subject (typically to a class)	the profession of a teacher
	the activities of educating or instructing; activities that impart knowledge or skill
	the principles and methods of instruction