Re: What do you REALLY want to teach?
I too have had my big plans fly out the window.
I have a really regular group these days. So I usually know who's going to be in class when, and what they need to work on. So usually, unless there is something I'm really interested in working on, I work around what they need.
If it's time for one of them to get a better Ikkyo, or improve their ukemi, then that's what we work on. Adapting to their needs usually forces me to deal with the stuff I might not want to look at, which is great for me as well.
For example I used to hate juji nage, my teacher didn't teach it much, and it was one of my weaker techniques. However when it came time for one of my students to develop a juji nage, mine got better too.