Methodology of teaching functional dependencies between quantities through simple problems in primary classes

Teaching functional dependencies between the quantities learned in elementary grades is one of the requirements for education. Imparting the necessary knowledge to students, being able to apply the acquired knowledge in everyday life and future education directly depends on the knowledge, skills and habits acquired by primary school teachers and future classroom teachers in higher schools. Experiments show that elementary school students cannot understand the dependences of many quantities, they have difficulty in applying them. Therefore, in the article, we have given the theoretical basis of the implementation of dependencies between the quantities that will play an important role in the professional training of future classroom teachers by means of simple problems and corresponding methodical works.