Ethnomatematics are used as modes, styles, and techniques of "tics" to describe, understand, and deal with the natural environment and cultural "mathema" in different cultural systems "ethnos". This means that ethno-mathematics functions as a bridge between mathematics and culture in society. The purpose of this research is to describe the ethnomatematics contained in iron handicraft products. This type of research is a qualitative research with an ethnographic approach. There are two subjects in this study, S1 as the owner and maker of iron handicraft products, and S2 as a helper in completing the manufacture of iron handicraft products. The methods used in data collection are observation, interviews, and documentation. This research focuses on observing ethnomatematics contained in iron handicraft products which include the concept of flat shapes, space shapes, parallel lines, ellipses, parabolas, congruence and kekongruenan. Ethnomatematics in this study the final results will be made as a package of math problems for class XI students.
Keywords: Ethnomatematics, iron handicraft products, package of math problems