Exploration of the Counting Habit of the Hatam Tribe in Nuhuwei Papua Barat Indonesia

The Hatam tribe is one of the sub-tribes Arfak tribe. This study aims to explore numeracy culture Tribe spoken by community who inhabit Nuhuwei Village, Ransiki District. research ethnographic. techniques used for data collection are interviews, exploration, literature study, desk and documentation. Interviews explorations were conducted with several elders spoke language in Village. Literature documentation studies looking other sources information related previously existing obtain accurate results. Desk Study was find out mathematical patterns Tribe. results obtained from this that mathematically, counting people Village have different dialects speech areas. Besides that, another finding pattern mentioning numbers inhabiting correlates on Jarimatika. We call latest using language-based Jarimatika as Himatam (Calculating Using language). shows learning elementary students can be done more easily Method.