Methods and Tools of Educational Technologies in the Formation of the Concept of Figure Face in Students

This article discusses the theory of sets in modern mathematics to substantiatethe concepts of "number", "figure" and others, which in turn creates conditionsfor the formation of quantitative relations in children and the formation of theconcept of natural numbers. The content is illustrated by examples.The Grade 3 math textbook is filled with exercises to deepen and strengthen theconcept of the figure's face.Introduction to geometric concepts written in the 4th grade math textbook,concepts such as the perimeter of a polygon, the perimeter of a right rectangleand a square, as well as "units of measure, calculating surfaces usingformulas", "calculating the face and perimeter" issues ", solving practicalproblems of measurement