dont get so hung up on "classical" arrangements: look at the qigong you already know - and by "know", I mean that, through your practice, u hav become deeply-acquainted with; then look at how what u kno works in terms of each individual movement and as a group; look at each movement in terms of it's own depth; and look then at how each move interracts with others in a set like 8 brocade or yi jin jing; understand these interrelationships, and u can then mix and match accordingly; this is how ur qigong becomes alive, not set in stone to die;

when u hav discovered the aliveness, u can modify what u hav to suit ur needs and the needs of u students - b it teaching for recreation at a communicty college, or for health / healing in a medical setting;

u can even create ur own qigong movements or sets - u don't need permission from anyone but urself - of course, if one does create something new, from where does this creation arise? how deep is the well from which one draws water? if u r already teaching, then presumably ur well is deep enough to quench the thirst of those without one - hopefully u won't run out of water for urself!

teahing qigong is about teaching breath and body - and to b mindful while one teaches in order that ur students learn by direct observation of the depth of ur practice; do u embody the practice? if so, when u hav this, then the content of what u teach becomes less important than the context...