The article examines changes in the state and psychological perception of fourth-grade students when performing TIMSS tasks, especially in the mathematical part. Attention is paid to the international assessment study TIMSS and its significance in modern society and leading world powers. The article describes the contribution of the leading countries in the study to the development of education and comprehensive personality development of primary school students. The development of schoolchildren affects the stability of education in the state and its international capabilities. Thearticle describes the educational environment in several major countries with a full description of its structure. The article also discusses the results of TIMSS and its impact on students 'creative thinking, the structure of TIMSS test tasks (blocks "Knowledge", "Applications", "Reasoning"). The articleis relevantforteachers, teachersandstudentsof primaryeducation.

Thinking, test questions, international research

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