PENGEMBANGAN MEDIA E-MONETH UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PADA MATERI BANGUN RUANG SISI DATAR

Digitalization is very important in facing the challenges of the era of society 5.0 and in 21st-century learning. Optimizing the use of digitalization also needs to be balanced with optimizing 4C abilities, especially critical thinking abilities. This research aims to develop the E-MONETH media for critical thinking skills on flat-sided geometric material. The subjects in this research were class XI students at Diponegoro Batu Middle School, academic year 2023/2024, odd semester. 32 students will The method used is the ADDIE method (Analysis, Design, Development, Implementation, and Evaluation) with a Concurrent Embedded Design type of research with a quantitative approach as the primary method. Data collection was taken from interviews, documentation, tests, and questionnaires. Meanwhile, data analysis uses Likert scale calculations, and N-Gain values. Based on the research results, it shows that E-Monopoly media based on Ethnomathematics (E-MONETH) is included in the valid category with a score of 3.28 and the category is very practical to use with a score of 3.32 to be applied in learning, and effective on students' critical thinking abilities with an N-gain score of 0.7 which is in the high category. Therefore, the E-Monopoly media based on Ethnomathematics (E-MONETH) for critical thinking skills on flat-sided geometric material is declared suitable for use in the learning process.