To do less than what is promised or implied by the school violates the dutiful responsibilities assumed when parents enroll their children. Know your customers-the parents. And above all, do not promise or imply what cannot be fulfilled. Educators have a duty to all the students. This duty entails motivating students to learn, making learning exciting and fun, knowing and understanding the subject content, assessing student achievement, reproducing in the minds of the students what the teacher wants them to know, using a variety of teaching strategies, and mastering core learning objectives.
Christian educators have a duty to themselves.
If it means extra hours of preparation, duty does it. Students should not be the recipients of a teacher's ignorance or incompetence. If a teacher or principal accepts a position in a Christian school, he accepts the responsibilities of the job. Duty drives educators to excellence, and excellence motivates them to do their duty. Do your duty in all things.