PENGEMBANGAN LKPD BERORIENTASI PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS PADA MATERI HIDROKARBON

DEVELOPMENT OF STUDENT WORKSHEET WHICH PROBLEM BASED LEARNING ORIENTED TO INCREASE STUDENTS CRITICAL THINKING SKILLS ON HYDROCARBON MATERIAL

Tujuan penelitian ini adalah mendeskripsikan kelayakan LKPD berorientasi Problem Based Learning pada materi hidrokarbon untuk meningkatkan keterampilan berpikir kritis peserta didik. LKPD disusun berdasarkan komponen keterampilan berpikir kritis yang meliputi interpretasi, analisis, dan evaluasi. Penelitian ini menggunakan metode dengan model pengembangan 4-D (define, design, develop, disseminate) yang terbatas pada tahap develop (pengembangan). Uji coba terbatas dilakukan terhadap 14 peserta didik XI MIPA-A SMAN 1 Kediri. Kelayakan LKPD ditinjau berdasarkan aspek validitas, kepraktisan, dan keefektifan. Hasil penelitian menunjukkan bahwa validitas LKPD yang dikembangkan dalam kategori sangat valid, ditinjau dari validitas isi dengan presentase 91,99%, dan validitas konstruk 88,33%. Kepraktisan  ditinjau dari respon peserta didik  dengan presentase kriteria isi 98,57%, kriteria kebahasaan 100%, kriteria penyajian 88,57%, kriteria kegrafisan 100%, kriteria model PBL 84,29%, dan kriteria keterampilan berpikir kritis 97,62%. Kelayakan dari aspek kepraktisan didukung oleh hasil pengamatan aktivitas peserta didik yang signifikan selama uji coba terbatas dengan interpretasi yang sangat baik. Keefektifan LKPD ditinjau dari peningkatan keterampilan berpikir kritis peserta didik dengan rata-rata skor N-gain sebesar 0,73 dengan kategori tinggi. LKPD yang dikembangkan dinyatakan valid, praktis, dan efektif untuk meningkatkan keterampilan berpikir kritis peserta didik pada materi senyawa hidrokarbon, sehingga layak untuk digunakan.

Kata kunci: LKPD, model PBL, keterampilan berpikir kritis, hidrokarbon.

The purpose of this study was to describe the feasibility of LKPD oriented Problem Based Learning on hydrocarbon material to improve students' critical thinking skills. LKPD is prepared based on components of critical thinking skills which include interpretation, analysis and evaluation. The method used is a 4-D development model (define, design, develop, disseminate) which is limited to the develop stage. The limited trial was carried out on 14 students of XI MIPA-A SMAN 1 Kediri. The feasibility of LKPD is reviewed based on the aspects of validity, practicality, and effectiveness. The results showed that the validity of the LKPD developed was in a very valid category, in terms of content validity with a percentage of 91.99%, and construct validity of 88.33%. Practicality is viewed from the response of students with a percentage of 98.57% content criteria, 100% language criteria, 88.57% presentation criteria, 100% graphic criteria, 84.29% PBL model criteria, and 97.62% critical thinking skills criteria. The feasibility of the practical aspect is supported by the results of observing significant student activity during limited trials with excellent interpretations. The effectiveness of LKPD in terms of the improvement of critical thinking skills of students with an average N-gain score of 0.73 in the high category. The developed LKPD is stated to be valid, practical, and effective to improve students' critical thinking skills on hydrocarbon compound material, so that it is feasible to use.

Keywords: LKPD, PBL model, critical thinking skills, hydrocarbons.