MODEL AJAR PROBLEM BASED LEARNING (PBL)

Abstrak

Penelitian ini bertujuan untuk mengetahui apakah penerapan model pembelajaran Problem Based Learning (PBL) dapat meningkatkan kemampuan berpikir kritis siswa dan hasil belajar siswa pada materi pencemaran lingkungan di kelas SDN 200202/5 SITAMIANG. Penelitian ini dilakukan di SDN 200202/5 SITAMIANG yang terdiri dari 20 siswa. Penelitian ini dilakukan dalam 2 siklus. Data hasil belajar siswa diperoleh dengan memberikan tes (evaluasi) dalam bentuk uraian materi pencemaran lingkungan. Hasil penelitian dianalisis dengan teknik analisis deskriptif dan persentase. Hasil observasi kemampuan berpikir kritis siswa menunjukkan adanya peningkatan dari siklus I ke siklus II yaitu 59,75% pada siklus I menjadi 75,25% pada siklus II. Dan hasil be lajar siswa juga meningkat dari 70% pada siklus pertama menjadi 85% pada siklus kedua. Berdasarkan hasil penelitian, dapat disimpulkan bahwa penerapan model pembelajaran Problem Based Learning (PBL) dapat meningkatkan kemampuan berpikir kritis dan hasil belajar siswa.

This study aims to determine whether the application of the Problem Based Learning (PBL) learning model can improve students' critical thinking skills and student learning outcomes in the environmental pollution material in SDN 200202/5 SITAMIANG. The research was conducted in SDN 200202/5 SITAMIANG of 20 students. This research was carried out of 2 cycles. Student learning outcomes data are obtained by giving a test (evaluation) in the form of a description of environmental pollution material. The research results were analyzed by descriptive analysis techniques and percentages. The results of observations of students' critical thinking abilities which showed an increase from cycle I to cycle II which was 59.75% in cycle I to 75.25% in cycle II. And student learning outcomes also increased from 70% in the first cycle to 85% in the second cycle. Based on the results of the research, it can be concluded that the application of Problem Based Learning (PBL) learning models can improve critical thinking skills and student learning outcomes.