<![CDATA[ABSTRAK Penelitian ini bertujuan untuk mendeskripsikan: (1) pengaruh model Problem Based Learning (PBL) terhadap kemampuan pemecahan masalah; (2) pengaruh LKPD berbasis masalah terhadap kemampuan pemecahan masalah; jenis penelitian yang digunakan eksperimen pretes dan post test serta LKPD berbasis masalah. Populasi penelitian ini adalah seluruh siswa kelas X ATP SMK An-Nuur Pasaleman Cirebon. Instrumen yang digunakan untuk mengumpulkan data berupa tes soal uraian dan LKPD berbasis pemecahan masalah. Teknik analisis data dalam penelitian ini menggunakan teknik analisis deskriptif kuantatif. Peningkatan kemampuan pemecahan masalah tersebut dapat kita lihat dari indikator- indikator penilaian pemecahan masalah siswa dalam pembelajaran yaitu pemecahan masalah siswa dalam diskusi kelompok, menyusun laporan dan presentasi kelompok. Maka didapatkan kesimpulan bahwa adanya peningkatan kemampuan pemecahan masalah siswa sebesar 85% setelah menerapkan model pembelajaran Problem Based Learning dengan LKPD pemecahan masalah pada materi limbah dan polusi dikelas X ATP SMK An-Nuur Pasaleman. Salah satu kelebihan utama model Problem Based Learning adalah mendorong pembelajaran siswa dalam pemecahan masalah tetapi mereka aktif terlibat dalam mencari alternatif solusi untuk masalah dalam kehidupan sehari-hari. Kata kunci: PBL, LKPD Berbasis Masalah, Pemecahan Masalah Siswa THE INFLUENCE OF THE PROBLEM BASED LEARNING MODEL WITH PROBLEM BASED LKPD ON STUDENTS' PROBLEM SOLVING ABILITY IN WASTE AND POLLUTION MATERIALS ABSTRACT This research aims to describe: (1) the influence of the Problem Based Learning (PBL) model on problem solving abilities; (2) the influence of problem-based LKPD on problem-solving abilities; The type of research used is pre-test and post-test experiments as well as problem-based LKPD. The population of this study were all class X students at ATP An-Nuur Pasaleman Vocational School, Cirebon. The instruments used to collect data were essay test questions and problem solving based LKPD. The data analysis technique in this research uses quantitative descriptive analysis techniques. We can see the increase in problem solving abilities from the indicators for assessing student problem solving in learning, namely solving student problems in group discussions, compiling reports and group presentations. So it was concluded that there was an increase in students' problem solving abilities by 85% after implementing the Problem Based Learning learning model with problem solving LKPD on waste and pollution material in class X ATP SMK An-Nuur Pasaleman. One of the main advantages of the Problem Based Learning model is that it encourages student learning in problem solving but they are actively involved in finding alternative solutions to problems in everyday life. Keywords: PBL, Problem Based LKPD, Student Problem Solving]]>
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