John,
Having 7 in the class is good. I hold my classes with a limit of 6. That way I can position them around the table where they can all see well plus I can see what they are doing. You are going to have a lot of fun teaching your students. It is so much fun when you show them a technique as simple as palmering a hackle and hear them say "so that is how that is done!" It is just a very rewarding experience. In several of my classes I have had 10 and 12 year olds and they were like sponges! They were a joy to teach!
Enjoy yourself and if there is anything I can help you with, PM me and I will do whatever I can.
Warren
Fly fishing and fly tying are two things that I do, and when I am doing them, they are the only 2 things I think about. They clear my mind.