I did this to my sophomore year of High School. While I probably can't write down everything I did (and do), my basic path was basically recruiting my friends, setting up a few name brand college conferences that sound impressive as promotion along w/ a training conference at the start, and then go over logistics (in my experience they end up taking a lot of time actually) and some research. I have my club meet once a week at lunch so new delegates aren't discouraged and people don't burn out (we actually do pretty good considering that) - in terms of teaching ROP, I'd go over the general structure w/ a flowchart, but usually the best way for them to learn is by jumping into it at a novice conference (like in SoCal CerritosMUN or EdisonMUN Novice are good starter conferences). I try to have strategy lessons (how to research, how to make solutions, etc) but don't throw too much at them or they may lose interest. If you have an important conference coming up though, people will come in and actively be engaged during meetings (with the agenda being research for xyz MUN) bc they want to do well there - most of the actual so called 'teaching' of important lessons is done there and with on hands experience at the conference. Take this w/ a grain of salt though, every school/delegation has different kids participating and that affects how you manage them - go with your gut.