Abstract
Quality education is a central goal of the Sustainable Development Concept, playing a critical role in the advancement and improvement of the quality of life in human society. In this regard, the purpose of this research work is to investigate the impact of using the PBL method in additional chemistry education on increasing students' creative competencies for the preparation of future specialists. Mixed research methods were used in the study. The three main parameters of the students participating in the study were assessed: participation in the study, the level of application of theoretical knowledge, and their motivational behavior towards studying chemistry. According to the results, it turned out that the indicators of student participation in research and motivational activities were 25-45% in the first quarter, and increased by up to 2 times in the second quarter. The third quarter saw continued upward dynamics. And in the last quarter, it was 100%. It was observed that the skills of applying theoretical knowledge gradually increase through the performance of experimental work. The students presented their research results to the Republican competition of research projects for students and won prizes. This had a positive effect on increasing students' interest in chemistry. Therefore, it is clear that the use of the PBL method in additional chemistry education will contribute to the training of highly competent engineers in the future.