The role of teacher is often formal and ongoing, carried out at a school or other place of formal education. In many countries, a person who wishes to become a teacher must first obtain specified professional qualifications or credentials from a university or college. These professional qualifications may include the study of pedagogy, the science of teaching. Teachers, like other professionals, may have to continue their education after they qualify, a process known as continuing professional development. Teachers may use a lesson plan to facilitate student learning, providing a course of study which is called the curriculum.
A teacher's role may vary among cultures. Teachers may provide instruction in literacy and numeracy, craftsmanship or vocational training arts, religion, civics, community roles, or life skills.
A teacher's professional duties may extend beyond formal teaching. Outside the classroom teachers may accompany students on field trips, supervise study halls, helps with the organization of school functions, and serve as supervisors for extracurricular activities. In some education systems, teachers may have responsibility for student discipline.
Around the world teachers are often required to obtain specialized education, knowledge, codes of ethics and internal monitoring. There are 300 staff working in Bethlahem School. The Teaching Staff are highly qualified and experienced and the Non-teaching staff are well trained.