I am a Scout Leader for my Daughters troop. They are Junior Scouts in age range from 10-12. Age plays a major factor in trying to convey things like this. I try to keep it simple and just use the basics. The attention span is limited so you need to be high energy. I agree with mini me in that if you cover just the basics, skim the edges you should be fine. If this is an older group you can be more in depth. Get yourself a couple helpers if you can! Most importantly have fun and make it fun. The more they have fun, the more they will retain. JMHO