Development of E-Module with A Scientific Approach To Improve The Student's Critical Thinking Skills At Class Xi Student High School In Optical Tools Material

This research aims to produce a physics learning media in the form of e-module with a scientific approach to learning physics on the optical instrument material for SMA / MA students. The subjects of this research were 46 students of class XI SMA Muhammadiyah Kota Bima. This developmental research refers to the method developed by ADDIE (Analysis, Design, Development, Implementation, Evaluation). Quasi-experimental method used in this research to test the effectiveness of the product with a research focus on e-module optical tools with a scientific approach to help improve students' critical thinking skills. The results of e-module validation by media experts showed 87.5%, material expert validation 82.78%, and learning expert validation 83.84%. Based on validation by media, material, and learning experts, it shows that this e-module in terms of several indicators used for validation has very feasible outcome criteria. Based on the results of trials in small and large groups of students, it was obtained that the average total aspect score of 88.78% and 86.6% was categorized as very feasible and the impact was measured on students' critical thinking. Based on the results of the D'Cohens test, users of e-module optical tools can provide effectiveness in improving students' critical thinking skills by 0.83 in the moderate category. So, it can be concluded that the e-module that has been developed by researcher can improve the students' critical thinking skills at SMA / MA.