Aim. The aim of the study was to highlight the key challenges related to the integration of Ukrainian students into Polish schools, and to identify educational practices that can support the development of peer relationships, a sense of security, and belonging. In this context, an original educational project entitled Strong in Diversity was used as a case study illustrating the possibilities of implementing integration activities in the school environment. This study allowed us to capture the importance of deliberately constructed educational situations in which students have the opportunity to work together, get to know each other, and develop social skills in a culturally diverse environment. The analysis of the project also made it possible to assess how thoughtful interactions and group activities can help reduce communication barriers and create an emotional climate conducive to integration. Methods and materials. An analysis of scientific literature and institutional reports on the integration of children with migration experience was used. In addition, the author’s educational project entitled Strong in Diversity was analysed by reconstructing its objectives, assumptions, and methods of work organization, treating it as an example of a practice supporting integration in a culturally diverse group. Results and conclusion. The results of the analysis indicate that activities based on joint action, mutual learning, and creative activity help to break down communication barriers and improve the atmosphere in the classroom. Students are more willing to engage in tasks, cooperate more often, and declare a greater sense of acceptance. The conclusions confirm that integration requires a consistent and systematic approach, combining emotional, social, and linguistic support, as well as the consistent creation of space for safe contact between pupils.