I think it would be a very good idea to analyse what you're doing, and probably valuable to have some transcripts of sessions-- what you think you're do may not be what you actually do.
Do you teach in person? By phone? I'm wondering how much you use subtle clues to find out what your student is thinking.
Usually, in person (either as a tag-team or "I'll be right over here, call me when you're stumped" approach; I've experimentally confirmed that behind-the-shoulder teaching has horrible success rates, at least for this subject), though a few times by chat / IM while passing the code back and forth (or better yet, having one of those rare setups where it's live-synch'ed).
TL;DR: Look at examples of wildly successful teaching recipes, take cues from them and from LW techniques and personal experience at learning, fiddle a little with it all, and ba...
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