I teach in Japan so there are probably things I do that would not be appropriate in the US (such as whacking kids that get out of line - in full view and with the permission of their parent(s)). Also, I teach them patience through the use of seiza (all of my students, mostly elementary school age) can sit quietly for at least 30 minutes without changing position. Most of the older ones can sit for an hour with no problem. As for the right/left problem, I think it is important to face in the same direction as the student when teaching those with this problem. I've taught many kids with this problem and most of them will get the right direction to move if they are facing the same direction as the model (instructor). This may help. As for having kids that don't want to train, I explain to them before they join that if they don't want to be here then they shouldn't. We also have a no-tuition "trial period" during which they have to master the basics of seiza and ochitsuki as well as basic stances and movements. This lasts for a month or two, after which the student fills in an application form in front of everyone. The student is allowed to wear a dogi only after being "accepted" (this removes what would be a needless expense for the parents if the child decides that karate is not for him/her). Perhaps because of this trial period we have a low-drop out rate for students that pass through it.