Keyword: «methodological system»

The article examines the theoretical foundations of algorithmic thinking development in primary school children. The main approaches to defining the concept are analyzed, and the structure of algorithmic thinking as applied to primary school age is identified. The author's methodological system, implemented by means of the LEGO Education WeDo 2.0 construction set, is presented. This system includes target-oriented, content-based, procedural, organizational, and evaluative components. The system is based on four types of educational tasks (reproductive, adaptive, productive, heuristic) arranged according to the principle of increasing complexity.