The Development of Worksheet Based on Problem Based Instruction to Improve Critical Thinking Skill of Students

The research's problem begins with a needs analysis in learning. This study aims to produce worksheet products based on problem-based instruction that are feasible and effective in improving students' critical thinking skills. This research is a Research and Development (R&D) type of research. The development is carried out referring to the theory of Borg & Gall. The population of this research is the fifth-grade students of SD Gugus Ki Hajar Dewantara, Metro, Lampung. Subjects in this study were determined using a purposive sampling technique obtained by as many as 41 students. The data collection tool uses a valid and reliable test instrument. The data analysis technique used N-Gain. The results showed that the worksheet developed was feasible and effective in improving students' critical thinking skill