APPLICATION OF THE PROBLEM BASED LEARNING (PBL) MODEL ON STUDENT LEARNING OUTCOMES IN THE MATERIAL ON HOW 2-STROKE AND 4-STROKE ENGINES WORK

Abstract

This study was motivated by the low level of student engagement and understanding in vocational subject learning, as indicated by initial learning outcomes that had not yet met the minimum mastery criteria. The purpose of this study was to analyze the implementation of the Problem Based Learning (PBL) model in improving students’ learning outcomes on the topic of two-stroke and four-stroke engine operation at SMKN 1 Cisarua, West Bandung Regency, Grade X Automotive Engineering Program. The research employed a pre experimental method using a one-group pretest posttest design involving 30 students. The research instrument consisted of a learning outcomes test that was validated by expert judgment. The results showed a significant improvement between pretest and posttest scores after the implementation of PBL, indicating a statistically significant difference, with an N-Gain value in the moderate category (0.497). Students’ responses to the implementation of the PBL model were categorized as very positive. It can be concluded that the PBL model is effective in improving students’ learning outcomes and encouraging active engagement in learning on the topic of two-stroke and four-stroke engine operation.

Latar belakang penelitian ini berangkat dari rendahnya keterlibatan dan pemahaman peserta didik dalam pembelajaran produktif yang ditunjukkan oleh hasil belajar awal yang belum mencapai kriteria ketuntasan. Penelitian ini bertujuan untuk menganalisis penerapan model pembelajaran Problem Based Learning (PBL) terhadap peningkatan hasil belajar peserta didik pada materi cara kerja engine dua langkah dan empat langkah di SMKN 1 Cisarua Bandung Barat kelas X Program Keahlian Teknik Otomotif. Penelitian menggunakan metode pre-eksperimen dengan desain one-group pretest–posttest yang melibatkan 30 peserta didik. Instrumen penelitian berupa tes hasil belajar yang divalidasi oleh ahli. Hasil penelitian menunjukkan adanya peningkatan signifikan antara nilai pretest dan posttest setelah penerapan PBL, yang menunjukkan perbedaan signifikan serta nilai N Gain yang berada pada kategori sedang dengan nilai 0,497. Respons peserta didik terhadap penerapan PBL termasuk kategori sangat positif. Disimpulkan bahwa model pembelajaran PBL efektif dalam meningkatkan hasil belajar peserta didik serta mendorong keterlibatan aktif dalam pembelajaran pada materi cara kerja engine dua langkah dan empat langkah.