NYTeacher, drop me a line and I'll give you the "Christmas" version of the Magic Kingdom touring plan from the Unofficial Guide. Let me know whether you're splitting that park into two days.
Bobcat, I don't think it's true to say that the Unofficial Guide touring plan, in particular the One Day MK Touring Plan for adults, requires you to "run around." For one thing, every time you leave one land in that touring plan, you're headed to an adjacent land (e.g., from Tomorrowland to Fantasyland). The only exception to this I can see is when we say to take the WDW Railroad from Frontierland to Toontown. But you're riding the train, not walking, so that's different.
There are times in the touring plan when you'll re-visit certain lands. Tomorrowland, for example, gets visited twice. The reason for that is that your morning touring time is best spent on attractions other than those left for afternoon (e.g., the TTA).
The general rule of thumb we have in the touring plan computer software for leaving a particular land is that we don't leave a land if we've not visited all of the attractions unless we can save more than 20 minutes waiting in line by going to an adjacent land. So, for example, by leaving Tomorrowland in the morning and going to Fantasyland, we're saving more than 20 minutes of standing in line by deferring some Tomorrowland attractions to the afternoon.
We also save more than 20 minutes by seeing only "high-priority" attractions in Fantasyland before heading to Liberty Square. If you look at the number of times we do this, those 20-minute savings start to add up. Especially if you consider that it's three or four minutes of walking for that 20 minutes in line.
Regarding the difficulty in walking around the parks during Christmas, I think the worst area is around Peter Pan in Fantasyland, which is a choke point because of strollers. One option there is to either break the MK tour into two days. But I think NYTeacher is only going to go through there once or twice, so it might be ok just to deal with it.
As you're both teachers, let me know if you'd like some background material on the math involved in creating touring plans for the Guide. I've had a couple of papers published in academic journals as part of my grad school work, and I think I can summarize it for kids fairly well.
Sincerely,
Len