STEM education, which was first introduced in 2001, has deep roots and a significant impact on society, encouraging critical thinking, innovation and technological progress. In Croatia, STEM education is increasingly integrated into the school curriculum through various initiatives that encourage an interdisciplinary approach and practical learning. Research is a basic need of a small child that manifests itself throughout childhood, and STEM education in preschool significantly contributes to the development of cognitive and social skills. Mistakes are a natural part of the learning process and should be embraced as opportunities for development, while working in teams helps children improve communication and collaboration skills. The introduction of STEM education in preschool institutions requires an interdisciplinary approach, practical learning and the use of technology, along with the training of educators in the application of STEM methods. Although STEM education brings many benefits, such as the development of critical thinking and creativity, it faces challenges such as a lack of resources and training for educators. Children discover their environment through research activities, and the role of educators is crucial in supporting these activities, especially in free activities. Educators should encourage children to actively explore and experiment, creating a stimulating environment that enables development through sensory and logical experiences. Gender differences in STEM education begin as early as elementary school, where girls often experience less support and encouragement, which can negatively impact their interest and confidence in STEM fields. Stereotypes about gender roles further reduce girls' motivation, but support programs and interventions can significantly increase their confidence and interest in STEM. Preschool children can develop basic STEM competencies through play and everyday activities, because they are naturally curious and prone to research. Through peer interaction and joint activities, children share their discoveries and knowledge, which encourages collaborative learning, a deeper understanding of STEM concepts, and the development of social skills. In Croatia, successful projects such as "STEM for health" and the Save the Children initiative are implemented, which encourage STEM education through practical activities and catalogs of good practices. An interdisciplinary approach in STEM education enables the integration of different scientific disciplines, which helps children develop a comprehensive understanding of the world through play and hands-on activities. Shorter STEM programs adapted to preschool age allow children to gradually learn basic STEM concepts through play and practical activities, which increases their interest and motivation to learn. In the Medenjak Kindergarten, this program provides a high-quality and stimulating V environment, while educators continuously improve and adapt teaching methods to the needs of children. Through research conducted with parents of children participating in the STEM program at the Medenjak Kindergarten in Vinkovci, it became clear that children transfer acquired knowledge and skills to their parents in various ways, and that parents noticed that children have acquired new competencies that they use in their everyday lives. Workshops with children have proven to be an excellent way to expand children's knowledge and encourage them to think "outside the box".