Needs analysis in development of physics student books based on STEM approach for 11^th grade senior high school

Physics learning is learning to emphasizes giving direct experience to students to foster the ability to think, work and be scientific, and communicate. In this case, physics learning by STEM approach can equip the skills needed by students. STEM (Science, Technology, Engineering and Mathematics) approach provides training for students to be able to integrate Science, Technology, Engineering and Mathematics in physics learning. In addition, the need for effective learning tools in helping students to build their knowledge independently. One effective learning tool is student books. However, there are still books on physics students who have not used the STEM approach. This study aims to analyze the needs of physics student books based on the STEM approach. This research is a descriptive study carried out through direct observation at senior high school (SMA N 4 Padang), with a sample of research is students of 11^th grade. Needs analysis of physics student books includes analysis of students, analysis of teaching materials, and analysis of learning activities, with questionnaires and interview sheets. Based on descriptive data analysis of material teaching, the result obtained 73.8. Therefore need to be developed a physics book based on the STEM approach.