Need analysis of student worksheet based on tracker on static fluid learning material in high school

The 2013 curriculum is a student centre, which is centred on students to be able to be active, creative and critical in finding the concept of learning. Project based learning model (PjBL) as one of the student centre learning models that integrates projects in the learning process. LKPD is one type of teaching material that can help students achieve learning goals. LKPD will help students to improve the skills (psychomotor) of students in understanding the concept of physics. Technological advancements provide new innovations for science, one of which is in understanding the concept of analyzing video using a tracker application. This study aims to develop learner-based worksheets (LKPD) on static fluid material. This type of research is research and development with 4D model which has four stages, namely define, design, development, and disseminate. The instrument used for material analysis and learning objectives is the analysis sheet. While the instrument used for the initial analysis and analysis of students in the form of questionnaires. Data analysis techniques use percentage descriptors. The results of front end analysis showed that there was 85% performance aspect in the good category, 58% SKL in the good category, 80% in the learning objectives aspect in the good category, 64% in the needs analysis aspect in the good category, 59% in the good category and results analysis of students obtained 82% spiritual aspects in the good category, 68% in the social aspect in the sufficient category, 73% in the aspect of knowledge in the good category and 73% in the skill aspect in the good category.