The low knowledge and love of students for culture, plus based on preliminary analysis, it is known that geometry skills are relatively low. The a need for harmony between student and teacher learning styles to maximize student engagement and focus in the classroom. So this study aims to create a culture-based Geometry learning design that effectively improves students' geometry skills in terms of students' learning styles and domicile. Furthermore, specifically examines geometry skills in terms of learning styles and student domicile. The subjects of the study were students of SMP Negeri 1 Ciruas and SMP Negeri 1 Tanara, Serang Regency. The research used the R&D method of prototype development model and quality research method. The results of the study found that the invention-based Ethnobra (Ethnomathematical Geogebra) design was valid, practical, and effective in improving students' geometry skills. The results of the subsequent analysis found that urban students had better geometry skills than rural students. It's also known that students with a tendency towards kinesthetic learning styles have the highest geometry skills. This study recommends that teachers use the Ethnobra model by integrating Geogebra applications in Geometry learning, especially for students who go to urban schools and with kinesthetic learning styles.