This study aims to explore elementary school math concepts in traditional houses in Waka village, Ende, NTT. This research is a qualitative research with an ethnographic approach. The process of collecting data in this study was carried out by interview, observation and documentation. The results showed that the Waka traditional house was related to elementary school mathematics. Mathematical concepts found in traditional houses in Waga Village are dominated by the concepts of primitive geometric elements (such as points, lines, line segments, angles) and flat and space forms.