Keyword: «the concept of magnitude»

The article reveals the problem of the formation of concepts of quantities in elementary school students in the process of teaching mathematics. The authors of the article describe the theoretical and practical stages of research related to the formation of the basic concept of elementary mathematical education, the results of diagnostics of the initial level of knowledge of the concept of magnitude in 4th grade students are presented, as well as a description of the developed set of exercises in mathematics aimed at improving students' concepts of quantities and their measurements.