Skripsi
PENGEMBANGAN LKPD BERBASIS PROJECT BASED LEARNING (PJBL) PADA MATERI KOLOID
This study aims to develop Student Worksheets (LKPD) based on Project Based Learning (PjBL) on colloid material that meets valid and practical criteria. This research employed a research and development (R&D) approach using the 4D development model, which consists of four main stages: Define, Design, Develop, and Disseminate. The research subjects were involved 11th grade students of SMAN 1 Parittiga, with a small group trial involving 12 students. Data were collected through interviews, expert validation (materials and media experts), and questionnaires distributed to teachers and students. The Validity data waere analyzed using the Aiken V formula, while practicality was analyzed using the average percentage of questionnaire responses. The development results indicate that the PjBL based student worksheet (LKPD) on colloid material has been validated by experts and is categorized as valid. In terms of practicality, the teacher response questionnaire showed a percentage of 88%, while the student response questionnaire reached an average of 97.5%. These results indicate that the developed LKPD is highly feasible and practical for use in the learning process. Therefore, in the form of Project-Based Learning (PjBL) worksheet on colloid material meets the criteria for validity and practicality, and it’s suitable for use as a learning of 11th grade students at SMAN 1 Parittiga. Keywords: student worksheet, Colloid Systems, Project-Based Learning, 4D Model.