Pengembangan Media Big Book berbasis Etnosains terhadap Kemampuan Berpikir Kritis Siswa Sekolah Dasar

Abstract

In the 21st century, students are required to have 4 abilities, one of these abilities is the ability to think critically. The aim of this development research is to develop ethnoscience-based Big Book learning media that is valid, practical and effective, and can improve critical thinking skills in elementary school students. The subjects of this study were class IV of UPT SDN 169 Gresik. This research uses the research and development (R&D) method and the ADDIE model which has five stages according to Robert Maribe Branch. The five phases consist of analyze (analysis), design (planning), develop (development), implement (implementation), and evaluate (evaluation). The methods for data collection utilized are questionnaires, testing sheets, and validation sheets.Data collection instruments used Big Book media validation sheets and learning tools, observation sheets and student response questionnaires. The results of this development show that ethnoscience-based Big Book media is suitable for use, so that students' critical thinking also increases. It is said to be feasible because the validation results of the media and the tools that help media development show the "very good" category and the qualification "very usable". Meanwhile, the media is said to be practical, seen from the results of observations of learning implementation, namely "very practical" and received a positive response from students ,namely "very interesting". Meanwhile, students' critical thinking skills are said to have increased because it is measured from the pretest and posttest, the average pretest score shows an indicator of "very poor" while the average posttest score is "very good". Thus, ethnoscience-based Big Book media is suitable for use in a valid, practical and effective manner.