Haryanto, T. Nusantara, Subanji, S. Rahardjo
This current study is at aim to identify the mathematical concept of Arfak tribe concerns with lines in daily life. The method used in this research is ethnography. The result has shown that the sense of sight is involved so as to determine the lines. It is used as a result of limited sources. © 2019 Published under licence by IOP Publishing Ltd.
Department of Mathematics Education, Universitas Negeri Malang, Indonesia; Department of Mathematics, Universitas Negeri Malang, Indonesia