A principal has two main tasks that their day should revolve around. The first of these principal duties is to provide an atmosphere that promotes high amounts of learning on a daily basis. The second is to advance the quality of the daily activities for each person within the school. All of your tasks should be prioritized based on seeing those two things take place. If those are your priorities, then you will have happy and enthusiastic people in the building that are teaching or learning on a daily basis.