There are some coaching resources on the internet but I think they're aimed more towards team level. However you could try searching up Beth Gardner's blog on GymSmarts. She also has an account here, and a couple youtube videos, and a lot of her stuff is aimed more towards classes.
I teach all levels of classes in addition to coaching team, so I can relate to the lack of info. I did see an interesting link awhile ago from a YMCA I'm going to try to find to post. With class level skills. For me the key in teaching and something that's really been driven home teaching adaptive classes is to never assume the kids know anything. You really want to think of ways to break it down and make it easy. For example some kids won't understand a bent arm hang on the rings, and I try to give cues like "pull down on the rings" etc. Any actions you can tell them to do with their bodies in words they understand. For years I have been using the term "stomp" to teach a hurdle. I tell them to run and stomp. I see people trying to explain it and they are saying "hurdle" - that isn't helpful to 5 year old level 2s. I tell them to put their arms up after their feet hit, and I've found this to be fairly natural and produce a satisfactory board approach that's at least some sort of starting point. This is where a lot of higher level coaches will look at you like you're killing something sacred, but eh. I'm all for teaching things right the first time - in some ways. In other ways you have to be a little more flexible and creative to get to the end result. I view the point as trying to teach body awareness and control, and build strength. I'm in the interesting position of coaching all levels of class and team (including some preteam) so I have the ability to spot the kids I think will move up and work with them from the get-go on what I think is important. But this is a pretty unusual structure. In other cases, you're usually going to coach some groups and they'll move to someone else entirely for something else - in that case you'll want to communicate on what the requirements for team evaluations are, how to prepare the kids, etc.
