The availability of the material and technological capabilities of modern information and communication technologies in the field of education allows, on the one hand, to realize the creative potential of each teacher in creating such tools as educational and methodological complexes, applications, simulators, educational games, and so on, significantly changing the pedagogical tools, and on the other hand, the expanding range of newly created teaching aids causes an urgent need for an adequate assessment of their impact on learning outcomes. The purpose of the work is to evaluate the effectiveness of using the simulator program for independent studies of students in the discipline "Descriptive geometry". The work used such research methods as questionnaires using Google Forms, testing, timing, statistical data processing, comparison of control and experimental groups, construction of bar and pie charts, SWOT analysis. In the process of pedagogical research, the following platforms and programs were used: LMS Moodle, Microsoft Excel, an original simulator program for the development of students' spatial thinking. It has been established that the developed simulator program for the development of spatial thinking of students of engineering specialties studying the discipline "Descriptive Geometry" allows increasing students' interest in mastering the topics of the discipline, favorably affects the formation of skills for constructing orthogonal projections of a point, reducing the time for solving problems on this topic by 40% and also positively affects the degree of adequacy of students' self-assessment. It has also been established that to check in a semi-automatic mode 80 reports of students on the implementation of individual tasks in the simulator program, the teacher will spend only about 30 ... 40 minutes of his time. At the end of the article, ways to improve the simulator program are given and directions for further research are outlined.