THE DEVELOPMENT OF STEM-BASED E-STUDENT WORKSHEETS ON ELECTROLYTE AND NON-ELECTROLYTE SOLUTION MATERIAL TO IMPROVE STUDENT’S LEARNING OUTCOMES

Abstract

The aim of this research is to develop STEM-based E-Student Worksheets, determine the feasibility of STEM-based E-Student Worksheets as assessed by material expert validators, learning experts, and design experts, and describe the effectiveness of STEM-based E-Student Worksheets in improving student learning outcomes in material electrolyte and non-electrolyte solutions. This RD using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). Product trials were conducted on a small group of 30 students from a single class. Material experts, three learning experts, three design experts, and pretest and posttest results were used to collect data, which was then analyzed and described. According to the experts' feasibility assessment, three validators material experts, three learning expert validators, and three design expert validators were declared very feasible to use in the learning process with successive average scores: 81.5%, 87.78%, and 85.97% with very feasible criteria and E-Student Worksheets based STEM which is designed to be effective for improving student learning outcomes and can be used in learning, With learning outcomes, an average pretest score of 51.67 and a posttest score of 86.33 were obtained, as well as an average N-Gain of 0.72 with high interpretation and a percentage of completeness of 90%.