I think it all boils down to treble clef (melody) or bass clef (rhythm & harmony). Treble clef for single note scale work for the tune aka you lead solo. Alternate picking here, I never have had economy picking explained to me to where I know the difference in it and alternate. So IMO for a beginner alternate picking for scale work. Gotta do your scales. I'm a box guy and would have them using the box and the Major scale and the Major Pentatonic pattern first then bring in the natural minor with it's pentatonic. Throw in the blues scale pattern for fun.
I do not see a need for 5 patterns up the neck, however. Couple 2 or 3 is plenty. If you take them into modes teach the parallel method, i,e, The major scale pattern R-2-3-4-5-6-7 is home base for the major modes and the natural minor scale R-2-b3-4-5-b6-b7 is home base for the minor modes - want Phrygian change the 2 to a b2. Want Lydian change the 4 to a #4. And please explain modal vamps and the droning effect to them.
Now for the bass clef stuff. I started out on rhythm guitar and now also play 4 string bass. After I got into bass I realized all that strumming I was doing on rhythm guitar was based upon what the bass clef notes were telling me. But of course with fake chord and or lead sheet there is no bass clef. So start them on fake chord and when you get into chord progression theory bring in the bass clef. Somewhere add that following the chords with the chord's pentatonic makes a first attempt at their lead solo.
- Fake chord sheet music using
- All down strums. Then....
- Boom, strum, boom strum. Boom being the lowest note of the chord.
- Alternate boom. Alternate the boom between the 6th and 5th string.
- One up down strum.
Those four strum patterns should be enough to get them started.
Of course IMO.