PENGEMBANGAN E-LKPD BERBASIS PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS PESERTA DIDIK PADA SUB MATERI ZAT MAKANAN

DEVELOPMENT OF E-LKPD BASED ON PROBLEM BASED LEARNING(PBL) TO IMPROVE STUDENTS' CRITICAL THINKING SKILLS ON FOOD SUB MATTER

Keterampilan berpikir kritis sangat diperlukan untuk meningkatkan kualitas pendidikan di Indonesia. Penelitian ini bertujuan untuk mengembangkan E-LKPD berbasis Problem Based Learning (PBL) untuk meningkatkan keterampilan berpikir kritis peserta didik pada sub materi zat makanan yang layak berdasarkan validitas, kepraktisan, dan keefektifan. Penelitian ini menggunakan model 4D (Define, Design, Develop, dan Disseminate) tanpa tahap disseminate. Metode pengumpulan data melalui wawancara dan menggunakan instrumen validasi, angket respon peserta didik, lembar observasi aktivitas peserta didik dan lembar tes kemampuan berpikir kritis pretest posttest. Subjek penelitian ini berjumlah 30 peserta didik kelas 11 IPA 3 MAN 2 Gresik. Berdasarkan hasil analisis E-LKPD yang dikembangkan mendapatkan validitas rata-rata sebesar 95.6% dengan kategori sangat valid. Hasil kepraktisan berdasarkan respon peserta didik mendapatkan persentase rata-rata sebesar 97.07% dengan kategori sangat praktis, didukung hasil observasi aktivitas peserta didik yang memperoleh rata-rata sebesar 98.6% dengan kategori sangat baik. Hasil keefektifan berdasarkan hasil pretest-posttest memperoleh skor N-gain sebesar 0.7 dengan kategori peningkatan sedang. Berdasarkan hasil tersebut, dapat disimpulkan bahwa E-LKPD berbasis Problem Based Learning yang dikembangkan dinyatakan valid, parktis, dan efektif digunakan sebagai bahan ajar dalam pembelajaran serta mampu meningkatkan keterampilan berpikir kritis peserta didik.

Kata kunci:  Lembar Kerja Peserta Didik Elektronik (E-LKPD), Problem Based Learning (PBL), Keterampilan berpikir kritis, zat makanan.

Critical thinking skills are very necessary to improve the quality of education in Indonesia. This research aims to develop E-LKPD based on Problem Based Learning (PBL) to improve students critical thinking skills in the sub-material of appropriate food substances based on validity, practicality and effectiveness. This research uses a 4D model (Define, Design, Develop, and Disseminate) without the disseminate stage. The data collection method is through interviews and using validation instruments, student response questionnaires, student activity observation sheets and pretest posttest critical thinking ability test sheets. The subjects of this research were 30 students of class 11 Science 3 MAN 2 Gresik. Based on the results of the E-LKPD analysis that was developed, it obtained an average validity of 95.6% with a very valid category. The practicality results based on student responses obtained an average percentage of 97.07% in the very practical category, supported by the results of observations of student activities which obtained an average of 98.6% in the very good category. The effectiveness results based on the pretest-posttest results obtained an N-gain score of 0.7 with a moderate increase category. Based on these results, it can be concluded that the E-LKPD based on Problem Based Learning that was developed is declared valid, practical and effective for use as teaching material in learning and is able to improve students critical thinking skills.

Keywords: Electronic Student Worksheet (E-LKPD), Problem Based Learning (PBL), critical thinking skills, food substances.