A. Educational entity B. School C. School education system D. Lifelong education

The extension of the basic definition of institutionalized education;

Institutionalized education means that educational activities are strictly confined to the school education system and act in strict accordance with a set of rules and regulations of the school, that is, to establish a school system with universal mission, stable structure and centralized rights.

According to the usual understanding, the system has two meanings: one refers to the system of institutions or organizations, and the other refers to certain standards and corresponding rules and norms. In terms of academic system, the two are combined into one. Therefore, the academic system not only refers to all kinds of school institutions at all levels, but also refers to these educational institutions operating according to standards, rules and norms, realizing standardized management, eliminating interference from the education system and outside the school as much as possible, keeping the education system independent and conducting school activities in an orderly manner.

The expansion of the meaning of institutionalized education;

The development of institutionalized education has increasingly become an important factor in social development, and its influence has penetrated into every corner of society. The contribution of institutionalized education to economic development and its influence on political, cultural and even personal development have been widely accepted by the society. The concept of informal education put forward by Coombs and others and the concept of unschooling advocated by ilych are both representatives of the trend of non-institutionalized education.