PENGEMBANGAN LKPD BERBASIS PBL MATERI SISTEM PERNAPASAN UNTUK MELATIHKAN KETERAMPILAN BERPIKIR KRITIS SISWA KELAS XI SMA

Development of Problem Based Learning LKPD Respiratory System Material to Practice Critical Thinking Skills of 11 th Grade in Senior High School

Abstrak

Guru perlu mengembangkan strategi pembelajaran yang kreatif dan efektif, termasuk menggunakan lembar kerja peserta didik yang inovatif, untuk menfasililitasi peserta didik dalam mengembangkan keterampilan berpikir kritis yang diperlukan di abad ke-21. Tujuan penelitian ini adalah untuk menghasilkan LKPD berbasis problem based learning (PBL) pada materi sistem pernapasan untuk melatihkan keterampilan berpikir kritis siswa yang valid, praktis serta efektif. Penelitian ini menerapkan model 4-D (Define, Design, Develop and Disseminate). Validitas LKPD dinilai berdasarkan hasil validasi ahli materi dan ahli media. Kelayakan LKPD akan dievaluasi dengan menggunakan angket responss siswa dan lembar observasi mengenai pelaksanaan LKPD. Sedangkan keefektifan dinilai dengan menggunakan tes hasil belajar siswa. Penelitian ini diujikan secara eksklusif kepada 20 siswa kelas XI B-3 SMAN 1 Kedungpring. Data dianalisis menggunakan metode deskriptif kuantitatif. Berdasarkan hasil penelitian, rata-rata validitas LKPD adalah 3,79 (sangat valid). Kepraktisannya terbukti dari responss siswa sebesar 95% (sangat baik) dan persentase keterlaksanaan LKPD yang mencapai 100% (sangat baik). Keefektifan LKPD menunjukkan ketuntasan hasil belajar peserta didik dari 59,25% di pre-test menjadi 90% di post-test, dengan peningkatan indikator pencapaian kompetensi berpikir kritis yang signifikan dari 59,32% menjadi 89,99%. Analisis N-gain menunjukkan peningkatan dengan kategori tinggi. Secara keseluruhan, LKPD materi sistem pernapasan dinyatakan valid, praktis, dan efektif digunakan sebagai media pembelajaran yang melatihkan keterampilan berpikir kritis.

Kata Kunci: LKPD, berpikir kritis, PBL, sistem pernapasan.   

Abstract

Teachers need to develop creative and effective learning strategies, including using innovative student worksheets, to help students develop the critical thinking skills needed in the 21st century. The aim of this research is to produce problem-based learning (PBL) based LKPD on respiratory system material to train students' critical thinking skills that are valid, practical, and effective. This research used a 4-D model (Define, Design, Develop and Disseminate)". The validity of the LKPD was assessed based on the validation results of material experts and media experts. The feasibility of the LKPD was evaluated using a student responsse questionnaire and an observation sheet regarding the implementation of the LKPD. Meanwhile, effectiveness was assessed using student learning outcomes tests. This research was tested exclusively on 20 class XI B-3 students of SMAN 1 Kedungpring. Data were analyzed using quantitative descriptive methods. Based on the research results, the average validity of the LKPD was 3.79 (very valid). Its practicality was proven by the student responsse of 95% (very good) and the percentage of LKPD implementation which reached 100% (very good). The effectiveness of the LKPD showed the completeness of student learning outcomes from 59.25% in the pre-test to 90% in the post-test, with a significant increase in critical thinking competency achievement indicators from 59.32% to 89.99%. N-gain analysis shows an increase with the high category. Overall, the LKPD material on the respiratory system could be declared as valid, practical and effective for use as a learning medium that trains critical thinking skills.

Keywords: LKPD, critical thinking, PBL, respiratory system.