I began teaching chess when I was in 5th grade, and have since taught chess to hundreds of students. I am a USCF National Master, though I no longer play in chess tournaments. From November 2017 until June 2018 I taught classes for Chess Wizards in the Seattle area.
USCF rating: 2200
chess.com highest bullet rating: 2519
chess.com highest blitz rating: 2454
Chess lessons usually consist of analyzing the student's games, discussing various aspects of the game (openings, endgames, studying historical chess games), homework after each lesson, and so forth. I can also play chess games with a student, followed by analysis of those games.
Playing chess games:
wheretoplaychess.info (list of chess organizations in every state)
chesstempo.com (tactics, openings, endgames)
chess.com/vision (identifying squares quickly)