PENGARUH MODEL PEMBELAJARAN DISCOVERY LEARNING TERHADAP HASIL BELAJAR SISWA KELAS X DPIB SMK

Abstract

ABSTRACT

This study aims to examine the effect of implementing the Discovery Learning model on student learning achievement in the Basic Program Skills subject for Grade X DPIB at SMKN 2 Binjai. The study is motivated by the low learning outcomes and student participation, which are caused by conventional teaching methods that tend to make students passive. The Discovery Learning model was chosen because it encourages students to independently discover concepts under the guidance of the teacher. This research employed a quasi-experimental method with a Two-Group Pretest-Posttest design. The sample consisted of two classes: the experimental class using Discovery Learning and the control class using Direct Instruction. The research instruments were learning achievement tests that had undergone validation, reliability testing, difficulty level assessment, and discrimination capability analysis. Data analysis revealed a significant difference in the learning achievement of students taught using Discovery Learning compared to Direct Instruction. Since the t-value exceeded the t-table value, the null hypothesis was rejected, and the alternative hypothesis was accepted. Therefore, the implementation of the Discovery Learning model has a significant effect on improving student learning outcomes in the Basic Program Skills subject for Grade X DPIB at SMKN 2 Binjai.

ABSTRAK

Penelitian ini bertujuan untuk mengkaji pengaruh penerapan model Discovery Learning terhadap pencapaian belajar siswa pada mata pelajaran Dasar-Dasar Program Keahlian kelas X DPIB di SMKN 2 Binjai. Penelitian ini dilatarbelakangi oleh rendahnya hasil belajar dan partisipasi siswa, yang disebabkan model pembelajaran konvensional cenderung membuat siswa bersikap pasif. Model Discovery Learning dipilih karena mampu mendorong siswa menemukan konsep secara mandiri dengan arahan dari guru. Penelitian ini menerapkan metode kuasi eksperimen dengan desain Two-Group Pretest-Posttest. Sampel terdiri dari dua kelas, yakni kelas eksperimen yang menerapkan Discovery Learning dan kelas kontrol yang menggunakan Direct Instruction. Instrumen penelitian berupa tes hasil belajar yang telah melalui pengujian validitas, reliabilitas, tingkat kesulitan, dan kemampuan membedakan peserta didik. Hasil analisis data memperlihatkan perbedaan yang signifikan antara prestasi belajar siswa yang diajar menggunakan Discovery Learning dibandingkan dengan Direct Instruction. Karena nilai t hitung melebihi t tabel, hipotesis nol ditolak dan hipotesis alternatif diterima. Dengan demikian, penerapan model Discovery Learning memiliki pengaruh signifikan terhadap peningkatan hasil belajar siswa pada mata pelajaran Dasar-Dasar Program Keahlian kelas X DPIB di SMKN 2 Binjai.