The Ethnomathematics in Farming Activities on Halmahera Island, Waidamo Village, East Sahu District

Ethnomathematics is an exploration of mathematics in the activities of people’s lives, especially culture. Mathematics is part of culture and is universal, as well as concrete ethnomathematics objects that can support and help students understand mathematics that is abstract in nature. Therefore, learning mathematics based on culture will be more interesting so that it can make students more active and think creatively in exploring their findings. Method This type of research is qualitative research with an ethnographic approach. The methods used to obtain data are field study methods, exploration, observation, interviews and documentation. In this study, it focused on the crafts of farming activities on farmers in Waidamo Village and involved two lecturers, 3 lecturers with various expertise and 2 students to assist researchers in exploring the geometric elements found in the crafts of farming activities. The purpose of this study is to explore ethnomathematics in farming activities. The data analysis technique used is triangulation, namely data reduction, data presentation and drawing conclusions. Data reduction is used to sharpen, classify, and discard data that is not needed in the study. The data obtained from the results of interviews, observations, and documentation are reduced by selecting the information needed to obtain valid data. Based on the results of the study, the ethnomathematics found were counting activities, rituals and comparing.