Hey here's something I can really help you with
I too am an instructor so let me give you a little bit of what I learned the hard way.
1. People bore easily and once they are bored they don't retain anything. Make jokes and tell stories. Get the class involved in the lesson.
2. Start with the most important subjects first. You will need class instruction before ever even thinking of going into the feild with your students.
3. The first thing out of your mouth should be tell them who you are and what training and experience you have. They need to know right away that they are dealing with a seasoned professional so they feel confident that what the are about to hear is no BS.
4. Don't be too hard core, remember these people you are teaching know nothing or very little about survival, that is why they are paying you to teach them.
5. Have fun. If you aren't enjoying yourself than your students definitely won't. I have found that people respond to emotions alot more often than I thought when I started this.
Good luck and hope you are very successful, right now I'm only doing classroom instruction I hope to one day have my own swath of land to really give some advanced courses on.