Education includes both the teaching and learning of knowledge, proper conduct, and technical competency. It thus focuses on the cultivation of skills, trades or professions, as well as mental, moral and aesthetic development. Formal education consists of systematic instruction, teaching and training by professional teachers. This consists of the application of pedagogy and the development of curricula.
Educational systems are established to provide education and training, often for children and the young. A curriculum defines what students should know, understand and be able to do as the result of education. A teaching profession delivers teaching which enables learning and a system of policies, regulations, examinations, structures and funding enables teachers to teach to the best of their abilities. Sometimes educational systems can be used to promote doctrines or ideals as well as knowledge, which is known as social engineering. This can lead to political abuse of the system, particularly in totalitarian states and governments.
Primary (or elementary) education consists of the first years of formal, structured education.
In general, primary education consists of six or seven years of schooling starting at the age of 5 or 6, although this varies between, and Sometimes within, countries. Globally, around 70% of primary ace children are air alled in Primary education and this proportion is rising.
In most contemporary educational systems of the world, secondary education consists of the second years of formal education that occur during adolescence. It is characterized by transition from the typically compulsory, comprehensive primary education for minors, to the optional, selective tertiary, or "higher" education (e.g., university, vocational school) for adults.
