1. Teach them the notes
2. solfege it together (do-re-mi-fa-fa-mi-re-do)
3. Say notes and finger
This has done wonders for our beginners. They know all these random accidentals and it's no big deal to them, it's just another note.
In turn with rhythm studies, this makes it SO easy for them to FLY through their method books lines when it's just the first 5-10 notes on their instrument.