The Development of Integrative Thematic Learning Tools Based on Problem Based Learning to Improve Critical Thinking of Students in Fourth Grade in Elementary School

The purpose of this research and development is to develop and describe the feasibility and effectiveness of developing integrative thematic learning tools based on Problem Based Learning in improving students' critical thinking. This type of research is research and development that refers to Borg and Gall theory. The population of this study was the fourth-grade students of elementary schools in Argomulyo Village, Banjit District, and the sample was determined by a purposive sampling of 27 students. Data were collected through observation sheets, questionnaires, and test questions. The test instrument that used able to fulfills validity and reliability, taking into account the level of difficulty, and the different power of the questions. The data analysis technique used is the n-Gain test to determine its effectiveness. The results of validating thematic learning tools based on Problem Based Learning are done by curriculum experts and learning experts. The results showed that the product development of integrated thematic learning tools based on Problem Based Learning produced is effective for use in the learning process for fourth-grade students. This is proved by the increase in student learning outcomes and students' critical thinking skills after using an integrative thematic learning tool based on Problem Based Learning. Keywords: Learning Tools, Integrative Thematic, Problem Based Learning, Critical Thinking. DOI: 10.7176/JEP/10-30-04 Publication date:October 31st 201