DEVELOPMENT OF STUDENT WORKSHEETS (LKPD) PROBLEM BASED LEARNING (PBL) WITH PRACTICAL METHODS FOR CLASS VII STUDENTS OF SMP NEGERI 03 ASK FOR ENVIRONMENTAL POLLUTION MATERIALS

This study aims to determine: 1) The feasibility of student worksheets problem-based learning (PBL) with practicum methods for class VII students of SMP Negeri 03 Suruh on environmental pollution material. 2) Practicality of student worksheets problem-based learning (PBL) with practicum methods for class VII students of SMP Negeri 03 Suruh on environmental pollution material. 3) Using student worksheets problem-based learning (PBL) with the practicum method for class VII students of SMP Negeri 03 Suruh on environmental pollution material. This research is a research and development (R&D) research adapted from Sugiyono. This research is limited to eight stages, namely 1) Potential and problems. 2) Data collection. 3) Product design. 4) Design validation. 5) Design improvements. 6) Product trial. 7) Design revision. 8) Usage trial. The research instrument was used as a questionnaire with a four-point response format from a Likert scale to determine the feasibility and practicality of the test instrument in the form of pretest and posttest questions, as well as documentation. The results showed that the student worksheet PBL IPA environmental pollution material can be used with a feasibility level of 93.57%, which means it can be used with revisions from the validator's input. The percentage of practicality by the teacher is 93.43%, and by students in the open class, 91.48%, which means it is efficient. The results of using the student worksheet PBL IPA have a significant effect and effective influence on student learning outcomes, as evidenced by the value of Sig. < 0.005 is 0.000 and the results of the comparison of t count > t table are 11.528 > 2.037.