Exploring Geometric Concepts Through an Ethnomathematics Approach in Makassar’s Kulapisik in Gowa Regency

This study aims to explore the concept of geometry that focuses on shape and size through an ethnomathematics approach to kulapisik, a traditional food of the Makassar tribe in Gowa Regency, and to identify the cultural values embedded within it. The research employs an ethnographic method with data collection techniques including observation, interviews, and literature study. The subject of the study is Mrs. Najmawati, a traditional cake maker with over 20 years of experience. The findings reveal that the process of making kue lapis involves values such as patience and togetherness, as the layering process requires gradual pouring of the batter, symbolizing hopes for abundant blessings. Geometrically, the cake embodies concepts of 2D shapes such as squares, rectangles, and parallelograms, as well as 3D shapes like cubes and rectangular prisms. The cake is typically cut into square or rectangular shapes, with each layer measuring approximately 0.4–0.5 cm thick. The cultural values reflected include togetherness in traditional wedding ceremonies, respect for cultural heritage, and patience throughout its preparation process. This study recommends integrating ethnomathematics into geometry education in schools. This approach can preserve cultural traditions while enhancing students' contextual understanding of mathematics