TPACK Implementation in Physics Textbook: Practice Problem-Solving Skill in Newton's Law of Motion for Senior High School Students

One of the skills needed in the 21st century is a problem-solving skill. This article describes the result of research on the implementation of TPACK in the physics textbook. The implementation of TPACK in the physics textbook is aimed to practice the problem-solving skill of senior high school students. The research method used is Research and Development with Dick & Carey model. Has been produced a physics textbook that integrates technological knowledge, pedagogical knowledge, and physics content knowledge in multiple representations with the stage to practice a problem-solving skill in Newton's Law of Motion concept. The stages of problem-solving in the developed physics textbook are: (a) presents the problem at the beginning of the chapter; (b) asking several questions to focus the problem; (c) formulating hypotheses on the problem; (d) present the material in multiple representations based on pedagogical and technological studies, and (e) explain phenomena based on the physics concepts of being studied. The results of this study have been validated by experts, are physics material experts, learning experts, and textbook media experts. The validation result of the physics textbook was declared feasible to practice the problem-solving skill for senior high school students.