Secondary education covers two music pre-school education on the International Standard Classification of Education scale. Article 28, of the Convention on the Rights of the Child states that primary education should be free and compulsory while different forms of secondary education, including general and vocational education, should be available and accessible to every child. In classical and mediaeval times secondary education was provided by the church for the sons of nobility and to boys preparing for universities and the priesthood.
As trade required navigational and scientific skills the church reluctantly expanded the curriculum and widened the intake. Secondary education is in most countries the phase in the education continuum responsible for the development of the young during their adolescence, the most rapid phase of their physical, mental and emotional growth. It is at this very education level, particularly in its first cycle, where values and attitudes formed at primary school are more firmly ingrained alongside the acquisition of knowledge and skills. Within a country these can be implemented in different ways, with different age levels and local denominations. Within this system, national governments can call levels 2, 3 and 4, levels 2 and 3 or just level 2, secondary education. Level 1 and Level 2, that is primary education and lower secondary together form basic education. The start of lower secondary education is characterised by the transition from the single class-teacher delivering all the content to a cohort of pupils, to one where content is delivered by a series of subject specialist.
The educational aim is to complete provision of basic education, completing the delivery of basic skills and to lay the foundations for lifelong learning. 3 courses, or employment, or vocational education after 9 or more years of education. The end of lower secondary education often coincides with the end of compulsory education in countries where that exists. Level 5- non tertiary course, or direct entry into the workplace.