Resumen:
This study examines the impact of developing intercultural competence in English as a foreign language (EFL) students over a 10-week period. The primary objective was to assess how the integration of thematic modules focused on cultural diversity influences students' language proficiency and cultural sensitivity. Using a mixed methods approach, quantitative data were collected using pre-test and post-tests, while qualitative data were collected through classroom observations and student interviews. Results showed a 20% improvement in reading skills and a 7% increase in grammatical accuracy, highlighting the effectiveness of the instructional design. In addition, students showed a marked improvement in attitude towards the target language, demonstrating their willingness to participate more actively in English communication. The results are consistent with Byram's model of intercultural competence, which emphasizes empathy, adaptability, and respect as key components of effective intercultural communication. These results suggest that consistent practice and exposure to intercultural learning environments not only improve language skills, but also foster a deeper understanding of cultural diversity, which contributes to more meaningful intercultural interactions.