and it also focuses on cultivating professions, trades, or skills.Formal education includes training and teaching by teachers who are professional and providing instructions systematically. The profession or science of teaching is involved in education, and so is the development of curricula.

There are a number of different disciplines which are drawn on by teachers in the tradition of liberal education. These include philosophy, biology, information technology, sociology, linguistics, and psychology. Those teachers, who are a part of teaching professions which are specialized, only teach in a narrow are. Examples of these specialized professions are zoology, astrophysics, and law. These teachers teach as professors in a higher learning institute.