Development of Project-Based Learning (PjBL) Based Student Worksheets (LKPD) to Improve The Collaboration and Creative Thinking Skills of Students of Junior High School

This research aims to evaluate the development and feasibility (validity, practicality and effectiveness) of Student Worksheets (LKPD) based on Project Based Learning (PjBL) at SMP Negeri 1 Bungku Timur. This development research uses the ADDIE model which consists of five stages, namely Analysis, Design, Development, Implementation and Evaluation. Quantitative data collection through validation tests of LKPD and effect sizes from pre and post tests, as well as qualitative data from descriptive analysis of student assessments and responses. Data was collected through interviews, questionnaires and tests. Data analysis techniques include the validity of learning tools, the practicality of using questionnaires, effectiveness through effect size to compare pre-test and post-test results, as well as collaboration skills through questionnaires and score evaluation to determine effectiveness. The research results show that the development of PjBL-based LKPD is effective, feasible and practical in improving students' collaboration and creative thinking abilities. The significant effect size value in the experimental class shows the positive contribution of PjBL, validation by material and media experts confirms the quality of the LKPD, and the student questionnaire shows ease of application and relevance. The rice ribbon making project as part of a biotechnology worksheet provides an interactive and relevant learning experience, better preparing students to face real-world challenges.