This should be pretty brief.
So, 21st Century motivations aside, you still have to review the basics. You still teach additions, you still teach the alphabet...and you still have to re-read "Romeo & Juliet" before you can teach it.
It's going well. But I currently have a fear that it's going to be like teaching a foreign language I'm not fluent in. Thus, great detail in my preparation is required. I'm going through the text very thoroughly and doing my best to prepare myself for all the, "What does that mean?" questions. But the best realization I've probably yet made as an educator still applies - it's better to admit when you don't know than try to lie to the students.