The development of technology that has penetrated into the world of education has been marked by the existence of renewable innovations that can support the learning process. One of them is the innovation in making learning methods. Teachers must be able to carry out a learning innovation because teachers have a very strategic role in the learning process. Science learning at Junior high school in Central Java area, especially Physics subjects, still uses method of lectures, giving notes, giving exercises, this is deemed less interesting and often boring due to the lack of innovation in learning methods. The purpose of this study is to conduct a need assessment and see the role of the teacher in developing science learning model usuing Flipped Classroom. The research method used is descriptive qualitative research method that is by way of need assessment by conducting interviews questionnaire and direct observation. A needs analysis questionnaire was given to the science teacher at Junior high school in Jawa Tengah area. From the research results, it was found that the development of the Flipped Classroom learning method needed to be carried out at Junior high school in Jawa Tengah area. The other result, teachers at school want training on the application of the Flipped Classroom learning method to improve the quality of learning methods.