That will depend on what kind of "keyboard" you are referring.
If you are talking about "pop piano", yes, Yamaha Contemporary Sch should provide the lesson.
(please note that Yamaha currenly don't provide any E. Keyboard lesson although they sell good quality keyboards.)
For Electronic keyboard, Cristofori / Ossia Music Sch should be a good start for beginners (but they don't teach improvisation).
RH = play melody and LH = play chords (with auto-accompaniment), this is basically what their lesson provide. Of cos in this case note-reading skills will be taught.