Abstract
Mathematics is a fundamental science that extends beyond the classroom and plays a crucial role in daily life, including within religious contexts, like the principle of Ukhuwah Islamiyah in Islam. Divergent perspectives often overlook this principle, which aims to unite Muslims, thereby impacting children's understanding of diversity. This study explores how mathematical concepts can be interpreted through the lens of Ukhuwah Islamiyah to reinforce both the principle and mathematical thinking. Using a qualitative method with an autoethnographic approach, the researcher (first author) reflects on personal experiences related to Qur'anic and Hadith teachings. Data were collected through narrative writing, narrative inquiry, document analysis, and expert interviews and validated using trustworthiness and authenticity criteria. The findings highlight various mathematical concepts linked to Ukhuwah Islamiyah, such as numbers and operations, geometry (lines and angles), building nets, and the alignment of lines and angles in congregational prayer. These insights provide a basis for integrating Islamic values into elementary mathematics education, fostering meaningful learning experiences. In conclusion, these mathematical elements provide valuable opportunities for classroom instruction, promoting character development, enhancing mathematical reasoning, and reinforcing the principle of Ukhuwah Islamiyah.