Natural potentials in the Terdepan, Terluar,Tertinggal (3T) regions can be used byscience teachers as a learning medium interesting for students in elementary school. Using of realmedium is a solution for teachers to improve science skills and to introduce potential areas forstudents. The purpose of this research are to give information on how to use the natural potentialas a real medium for science lesson in elementary school and using realia media can improve theskills of science. Types of research is classroom action research with two cycles. Data obtainedfrom observations, area studies and document analysis of regional potential. These results indicatethat the potential of the area can be used as a medium of realia in science teaching in the 3Tregions and the using of realia medium can improve the science skill by 6.25%.