THE TECHNOLOGY OF MASTERING THE CONCEPT OF "LENGTH" IN I CLASSES OF SECONDARY SCHOOLS

Among the problems of didactics, the need to "achieve the perfection of the methodical system of teach-ing this or that subject, to make it adequate to the convocations of the industrial revolutions" has always been relevant, and even today, the formation of an educational space that transforms the characteristics of the IV industrial revolution is an important and urgent problem. It also makes researches about the model of "method-ical system" aimed at solving the mentioned problem relevant. Which in these research processes are necessary elements to determine the nomenclature and classification of teaching tools, the scientific-theoretical and technological features of their application according to the logic of the modern teaching process of various subjects. The elementary course of mathematics is also an integrative course in its content, which follows from the objectives of teaching mathematics in elementary grades. Thus, in addition to arithmetic material (basic material), elements of algebra, geometry, physics, astronomy and natural science are also included in the mathematics course of grades I-IV, and concepts, definitions, rules and properties related to these elements are mainly taught to students at an intuitive level. It is obvious that the fields of science that we mentioned are directly related to quantities. The subject of mathematics is closely related to quantities and their measure-ment. Despite what has been said, we claim the relevance of conducting research on the topic "Technology of application of the "problem task type" to the management of the process of teaching Mathematics in secondary schools".