Elementary school (SD) Of Muhammadiyah Demengan Yogyakarta is featured SD. It is seen from the miraculous achievements of students both at provincial and national levels, adequate infrastructure, a spirit of community to send their children in elementary school. Accordingly, of course, can not be separated from the role of teachers as educators and counselors to provide services in the classroom and outside the classroom. Muhammadiyah elementary schools including one school are designated by the ministry of religion (MORA) to implement the curriculum by 2013. Therefore it is necessary to do research on the implementation of the scientific approach in science (IPA) learning curriculum in 2013. Type of research is qualitative lookups. As for the subject of this research is that teachers and students in the fourth grade (IV) of Muhammadiyah elementary school Demengan Yogyakarta. data collection by interview, documentation and observation. the process of data analysis, namely: examining the data, data reduction, and data presentation. he results of this research : (1) teachers in SD Muhammadiyah already understand and know the theory of scientific approach, steps in learning. As for the understanding of the scientific approach according to the fourth grade (IV) of Muhammadiyah elementary school teachers, Mr Kastowo "approach that starts from the observation first, continue to question, then the experiment, then summed and later would know that better results". (2) scientific approach in SD Muhammadiyah Yogyakarta new Demengan already implemented, but not perfect, because in their implementation more teachers using students' understanding and not exposed to the medium of learning. (3) As for the obstacles faced by teachers in the application of scientific approaches, namely, first a very short time per sub-theme. Both enormous costs required to confront instructional media. Third when teachers find students who are less active during learning. Key words: Scientific, Curriculum 2013 And Science (IPA).