The article updates the practical principles of an integrative approach to teaching primary school students. In the process of organizing the educational process, a modern primary school teacher should improve practical activities through the search for innovative significant priorities in developing a lesson, in choosing the main forms, methods, and techniques for conducting a lesson. Today, the actual direction of the updated lesson is the design of integrative lessons and their conduct, taking as a basis the integration of the educational content of subjects united by one basic theme. This interdisciplinary format of educational activity is based on the theory of perception and the realization that the search for knowledge is the best way of interdisciplinary research. For primary school students, it is especially interesting to perceive the material holistically, when one topic can be revealed through the prism of subject specifications. Thanks to this approach, the student can memorize the material at the level of his perception according to the theory of multiple intelligences. And when each material is presented in the projection of different subjects, the student has the opportunity to memorize and store knowledge for long-term memory, which is the main mechanism for the formation and development of functional literacy, which is given particular importance in modern education. In order to prove the efficiency of this method of teaching, there has been conducted a research with a positive impact on students.