In the "traditional" Daito-ryu approach, students start with jujutsu - just the regular ol' Ikkajo-Nikkajo-Sankajo-etc. curriculum. Next, they learn very specific, narrow aspects of IP and aiki, to apply to those jujutsu waza... Aikijujutsu. The "pure" internal training, Aiki-no-Jutsu is introduced last.
Are you talking about Kodokai, here?