I don't know about a demo...it would only reach a certain type of learner, you know? There are three different types of learners:
Visual Learners (Who learn by watching)
Auditory (who learn by sound) and
Kinesthetic learners (Learn by hands on or are really moving)
You have to be able to reach all types of learners for this Demo to be effective. Not only that, a visual guide would have to be hosted somewhere and likely as not a place such as You Tube (That is censored) from this site.
Chances are, even WITH a demo there would STILL be proliferous requests for assistance as is evidenced by the amounts of people who 'read the guides' from Mom2hnemi, Hmm, Mathmom2...etc. and they STILL need more information because the learning style is different that the guide presented.
---------- Dixiecup added 1 Minutes and 41 Seconds later ----------
I think you are better off to look at people's profiles and contact them personally for help
It is like we say in the Welcome posts, 'Contact me ANYtime you have a question.'