as for my own teaching experience, medyo virgin pa ako
I only taught one student, once. quick and dirty lessons ang nirequire sakin (ergo, 12 hours dapat nakaka rakenrol na).
of course not the ideal scenario but I had to deliver.
the student was 13 so I can be more serious, and start with the bare basics.
my first lesson involved notes (as in notebook notes) because I had to teach him the parts of a drumset, including drum names, parts of the drum, parts of the hardware, kinds of cymbals, the parts of cymbals, and parts of the stick. sobrang nakakatulong sya in the long run kasi pag nag-aayos ka na ng technique nung student mas madali maging precise (i want you to hit the ride bell with the shoulder of the right stick! needs less demonstration). after that, note reading.
after that I taught the freestroke (medyo nasa dom famularo/jim chapin camp ako ng stick technique), and had him determine which grip he was most comfortable with (american).
bare basic rudiments (single strokes, double strokes, paradiddles, triplets) with metronome, and keeping a close eye on stick technique. then rudiments around the kit.
nasa gitna na ng lessons ako nag introduce ng beats. that one was much harder kasi huhulaan mo kung paano mo aatakihin yung learning ng coordination. may mga mas madali matuto by "layers" (this pattern on this drum, then add another drum's pattern, then another) tapos merong by step/beat. kapaan lang din.
ang homework ko lagi drills lang tapos mandatory viewing ni carter beauford at bernard purdie