Turnitin: Ethnomathematics Exploration of The Rattan Handicrafts That Can be Applied in Mathematics Learning in Secondary Schools

Research on cultural values in mathematics learning is not widely available by researchers. Mathematical elements contained in culture need to be discussed further so that they can facilitate contextual mathematics learning. To realize this learning, it is necessary to first identify by exploring local cultural relics that express their relationship with mathematical concepts. The researcher tries to find the mathematical elements contained in the rattan handicraft products of the Lhoknga community. The researcher then describes and analyzes the mathematical elements to be used in understanding the appropriate geometric concepts. The research employed an exploratory descriptive qualitative approach. The research subject was a rattan craftsman from the Lhoknga community, in Indonesia, obtained by purposive sampling. Research data were obtained through semi-structured interviews conducted by researchers. Data collection uses a video recorder, and then data is documented for analysis using the Spradley model. The results showed that the rattan handicraft products produced by the Lhoknga community were food serving cover, pumpkins (boh labu), onion basket, parcel basket, and fruit basket. Geometry concepts contained in all of these products are lines and angles, circles, transformations, and curved side geometry. This study could also be developed on other mathematical materials.