Analysis of the needs for development of e-book learning media based on Flip PDF on sound wave materials in high school

This study aims to 1) find out the obstacles of students in understanding physics subject matter; 2) knowing the use of learning media by teachers in the classroom; and 3) analyzing students’ needs for the development of FlipPDF-based physics e-books to train sound wave material for high school students. The type of researcher is Research and Development (R & D) using 4D research methods (define, design, develop, disseminate). This research is only limited to the define stage, because this research is a preliminary research conducted before heading to the media development stage. The method of collecting information and data in this study was carried out by distributing questionnaires via Google forms to students of class XI MIPA at SMA PGRI 2 Sampit. All data obtained are sourced from the results of questionnaires given to students. The results of the study concluded that 1) The difficulties in understanding physics lessons experienced by students are caused by mathematical concepts and formulas that are quite complicated to apply. 2) Teachers often use printed books as media, of the six other learning media and rarely use e-books. 3) Most students need the development of physics e-books in learning, especially on sound wave material.