The article presents the multilevel structure of the late childhood, which being described by the system of the leading functions, forms the age periods. The submitted material is based on the author's theory of ontogenetic development. This theory consists in the statement that each new age period is performed in occurrence and development of the new level of matter organization, that in its developing affiliates the underlying organization levels beginning from the lowermost one and completing by the uppermost, until all organization levels will create the whole. The approach shows that the development is performed, firstly, as a result of transition from one level of organization to the following, which occurs through the integration of prior elements, and secondly, as a result of conversion of that empty new organization level into full level through affiliation of the elements from the previous level. Only the levels directly related to the age of late childhood are reviewed in the article. No doubt, the previous levels are also important, but secondary, incidental. Thus, the following levels are covered: cognitive, attributive, perceptual, sensory. From the formal point of view, each organization level is being similar in its becoming to every other organization level. In other words, they form the fractal structure. This principle is taken as a basis of analyzing the structure of the late childhood. A number of formation level elements are reviewed and discussed in the article. The formations level of the organization refers to the basic element, which appears due to the relationship of this level, bringing together elements of the previous level. Following components of organization levels were reviewed: position as the formation component of cognitive level, situation as the formation component of attributive level, object as the formation component of perceptual level, locus as the formation component of sensory level. Based on the determination of levels of the organization and their formations, the scheme of periodization of late childhood age was proposed.
Keywords: development, age of the late childhood, organization level, formation, primary function, leading function