I'm not actually teaching anyone out of a glass cockpit yet. I am however saving myself $230 p/h to ask you wise CFII's for some input for free. Is this still blind leading the blind?
The fact that you took the time to ask a question and listen to the responses says good things about your attitude and desire to do the best job possible.
However, there is no substitute for good quality one on one training in person.
When I got hired at my current school, I was provided the King Schools Cleared for Flying the G1000 computerized training course (about 6 hours worth of videos), plus flew one hour in the actual aircraft with an instructor already familiar with the system (paid for by the school, not me).
It was much better of a checkout than a lot of places give, but still less than ideal. I taught in the G1000 for a couple hundred hours and thought I had a pretty good handle on the system. Then I had the opportunity to take Cessna's three day long factory training course over the G1000.
The factory training blew me away. It showed me a significant shift in mindset. Before, I had looked at the system as a couple boxes with a bunch of cool features. The factory training really drilled how to apply the tools for safer operations in the real world. It's a "package deal" of situational awareness, workload management, improved decision making, etc. I believe I can be a much more effective teacher because of the factory training.
This is why I say there are too many "blind leading the blind" situations out there. I'll be the first to admit I wasn't as good as I should have been when I first started teaching it, but the thing is, I didn't know any better. I didn't know how much I didn't know.
The problem is, factory training courses are expensive. Most flight schools don't have the budget to send their instructors to three days of avionics training for relatively little return. And I certainly don't expect the instructor to pay for it, unless they're an independent CFI maybe.
It's a tough situation all the way around and I don't know what should be done about it. However, I think this lack of experienced glass panel instructors explains a lot of the popular misconceptions about glass panels (they're distracting, they're a crutch to student pilots, etc.). If the instructor doesn't have a really thorough understanding of glass panel operations themselves, how are they supposed to teach it?
It's not something that can be picked up through a few messages on an internet forum. Hopefully as glass panel operations become more common and more instructors coming up through the ranks get glass panel experience earlier in their training, these problems will naturally fade away.