PENGEMBANGAN Pengembangan E-LKM Berbasis Project Based Learning Pengelolaan Laboratorium Kimia Berbantukan Aplikasi Coohom

Abstract

^{This development research aims to produce Electronic Student Worksheet products based on Project Based Learning Chemical Laboratory Management that are valid, practical and effective. This research was conducted at the Chemistry Education Study Program of Sriwijaya University with the subject of chemistry education students who took the chemical laboratory management course in the 2024/2025 academic year. The development was carried out using the Rowntree model modified with Tessmer's formative evaluation. Research data were obtained through interviews, questionnaires, walkthroughs, and tests. The research data were analyzed using V'Aiken formula, Likert scale and N-gain test. The research results of the validity test stage showed that the material validity was 0.906 (high), the design validity was 0.925 (high), and the pedagogical validity was 0.962 (high). The practicality of E-LKM is seen from the results of one-to-one and small group tests. At the one-to-one stage, the score was 94% with a very practical category and the small group stage obtained a score of 91% with a very practical category. The effectiveness test at the Field test stage based on the results of the N-gain Score test obtained an average score of 0.726 in the high category.}

^{Keywords: Electronic Student Worksheet, project based learning, chemistry laboratory management}