I'll try to come up with some questions for this section to assist you...um...Unassisted? (Yeah, truly horible joke, I know).
The answers are going to have to be a collaborative effort for sure as I don't think there's any one guy who can possibly speak for the entire area of sabrmetrics.
Also, instead of listing single questions for each statistic, I think a "glossary" might be a better resource. There is a pretty good online glossary (with formulas) and I'll attempt to find that for you.
Example Q & A:
Q: How do people figure out all these stats?
A: Baseball statistics, at their most basic level, are simply historical event records. Certain groups compile databases of these events and sabrmatricians use formulas- some simple and some complex- to "massage" the data to draw knowledge from it. You can find a glossary of baseball statistics at <insert hyperlink>.
And I think the best thing you can do with unconnecting the SABR/sabrmetric dots is just post the following Q & A:
Q: What's the difference between "SABR" and "sabrmetrics"?
A: SABR is an acronym for a group- the Society for American Baseball Research. "Sabrmetrics" is an objective analytical study of baseball performance. Some sabrmatricians may be SABR members, but not all SABR members are sabrmatricians.
Anyway, I'll rack my brain tomorrow and try to come up with some substantial basic questions for ya', as I'm sure others will.