PENGEMBANGAN LEMBAR KERJA MAHASISWA (LKM) PRAKTIKUM KIMIA FISIKA I BERBASIS GREEN CHEMISTRY MATERI DISTRIBUSI SOLUT DIANTARA DUA SOLVEN TIDAK BERCAMPUR

Abstract

This study aims to develop a Student Worksheet (LKM) based on Green Chemistry, especially for the material of solute distribution between two immiscible solvents, with a focus on its validity, practice, and effectiveness. The study was conducted in the Chemistry Education Study Program, FKIP, Sriwijaya University, involving students from the 2023 and 2024 intakes. The development model used was ADDIE, with formative evaluation using the Tessmer approach. Data were collected through walkthrough methods, interviews, validation sheets, questionnaires, and learning outcome tests, and analyzed using Aiken's V, practicality percentage, and N-gain test. The validation results showed an Aiken coefficient value of 0.96 for design and 0.89 for material, both of which were in the high category. The practicality test showed 83.9% at the individual stage and 92.1% at the small group stage, both of which were very practical. The effectiveness test produced 80.6%, which was included in the effective category. Thus, this LKM has met the criteria of valid, practical, and effective.