Over the past few years, growing toys are becoming increasingly popular. A special place among them began to occupy the children's training sets of designers, and in connection with the development of electronic computing equipment began to appear sets of training designers robotics. These designers are intended to develop not only the design abilities of children, but also the basics of algorithmic thinking, because they provide the possibility of programming children created structures. This, in turn, makes it possible to use them in school lessons in physics, mathematics and computer science. To date, the largest amount of methodical materials provided by the designers of the company LEGO. Formulating the problem. Therefore, it is worth noting the importance of developing methods for using educational designers in school lessons. In scientific publications, you can find many materials that address the importance of the development of small motility in children and its impact on mental development. However, there are almost no studies concerning the influence of educational constructors on the development of fine motor skills, mathematical thinking and design abilities. Materials and methods. The study of the influence of educational constructors on cognitive activity of students is based on empirical methods: collection of scientific facts – analysis of scientific and methodological literature, textbooks and teaching aids; studying the results of pedagogical research. Results. According to the results of the analysis of scientific publications and methodical materials, the use of educational designers in preschool and elementary school helps to increase interest in education in general, and in the primary school increases interest in the study of physics, computer science and mathematics. Conclusions. Today, the study of the influence of educational designers on the formation of physical and technical knowledge of students is most developed in the methodological materials supplied with sets LEGO. However, these methods are not well suited for the introduction into the educational program of physics, mathematics and computer science in Ukrainian schools. Within the framework of the joint project, the LEGO Foundation and the Ministries of Education are beginning to develop new methods for the implementation of educational designers in the educational process, but they are limited to elementary and pre-school education. Key words: educational robotics, educational constructors, LEGO Education, cognitive activity, educational experiment.