Pengembangan Lembar Kerja Peserta Didik Problem Based Learning Materi Perubahan Lingkungan untuk Melatih Keterampilan Berpikir Kritis Peserta Didik Kelas X

Develompment of PBL Worksheets of Environmental Changes Topic to Train the Critical Thinking Skills of 10^th Grades High School Students 

Lembar Kerja Peserta Didik (LKPD) materi perubahan lingkungan membantu peserta didik dalam memahami konsep pembelajaran dan mencapai tujuan pembelajaran di era kurikulum baru. Selain itu, LKPD dikembangkan berdasarkan fase-fase model pembelajaran PBL yang berkorelasi dengan keterampilan berpikir kritis sebagai dasar kemampuan dalam menyelesaikan suatu permasalahan perubahan lingkungan. Penelitian ini bertujuan untuk menghasilkan LKPD berbasis PBL yang valid, praktis, dan efektif. Penelitian pengembangan ini menggunakan model pengembangan 4D tanpa tahap penyebaran. Validitas LKPD dinilai berdasarkan hasil validasi oleh dosen ahli materi dan ahli media. Kepraktisan LKPD dinilai berdasarkan respons guru (n=3) dan peserta didik (n=20). Keefektifan LKPD dinilai berdasarkan hasil belajar siswa berupa pre-test dan post-test serta ketercapaian indikator berpikir kritis. Analisis data yang telah dihasilkan menggunakan deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa LKPD yang dikembangkan sangat valid dengan skor validasi sebesar 92,7%. LKPD yang dikembangkan dinilai sangat praktis dengan skor kepraktisan respons guru sebesar 92,6% dan skor kepraktisan respons peserta didik sebesar 96%. Selain itu, LKPD dinilai sangat efektif dengan skor N gain sebesar 0,8 dan skor ketercapaian indikator berpikir kritis sebesar 93,3%. Berdasarkan hal tersebut, LKPD yang dikembangkan sebagai bahan ajar yang sangat valid, praktis dan efektif.

Kata Kunci: validitas LKPD, kepraktisan LKPD, keefektifan LKPD, kualitas pendidikan

Student worksheets for environmental changes topic help students understand learning concepts and achieve learning goals in the new curriculum era. Apart from that, the worksheets was developed based on the phases of the Problem Based Learning) model which correlates with critical thinking skills as the basis for the ability to solve environmental changes problems. This research aims to produce PBL worksheets that are valid, practical and effective. This development research uses a 4D development model (define, design, develop, and disseminate), without disseminate stage. The validity of the student worksheets is reviewed based on validation results by topic expert lecturers and media experts. The practicality of the student worksheets was reviewed based on the responses of teachers (n=3) and students (n=20). The effectiveness of the student worksheets is reviewed based on student learning outcomes in the form of pre-test and post-test as well as the achievement of critical thinking indicators. Data was analyzed quantitatively descriptively. The research results show that the student worksheets developed is very valid with a validation score of 92.7%. The student worksheets developed was considered very practical with a teacher response practicality score of 92.6% and a student response practicality score of 96%. Apart from that, the student worksheets is considered very effective with an N gain score of 0.8 and a critical thinking indicator achievement score of 93.3%. Based on this, the student worksheets developed is very valid, practical and effective for use as teaching topic on environmental changes and for practicing critical thinking skills.

Keywords: validity of student worksheets, practicity of student worksheets, effectivity of student worksheets, quality of education