IMPLEMENTASI E-LKPD BERBASIS PROBLEM BASED LEARNING-STEM UNTUK MENINGKATKAN HASIL BELAJAR DAN KEMAMPUAN BERPIKIR KRITIS PADA MATERI SISTEM KOLOID

IMPLEMENTATION OF E-LKPD BASED ON PROBLEM BASED LEARNING-STEM TO IMPROVE STUDENT OUTCOME AND CRITICAL THINKING ON KOLOID SYSTEM MATTER

Penelitian ini bertujuan untuk meningkatkan hasil belajar dan kemampuan berpikir kritis siswa pada materi sistem koloid dengan menerapkan e-LKPD berbasis PBL-STEM. Penelitian menggunakan metode desain one group pre-test post-test dengan melibatkan 35 siswa kelas XI IPA 1 SMAN 1 Kedamean. Instrumen penelitian meliputi lembar keterlaksanaan pembelajaran dan tes berupa pilihan ganda dan uraian. Analisis data dilakukan secara deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa keterlaksanaan pembelajaran sangat baik dengan persentase 91,8%. Nilai rata-rata pre-test dan post-test hasil belajar adalah 52,3 dan 82,3, sedangkan nilai rata-rata pre-test dan post-test kemampuan berpikir kritis adalah 48,29 dan 79,71. Persentase N-gain untuk hasil belajar kategori sedang sebesar 25,7% dan kategori tinggi sebesar 74,3%. Persentase N-gain aspek berpikir kritis kategori sedang sebesar 25,7% dan kategori tinggi sebesar 74,3%. Hasil penelitian ini menunjukkan bahwa penerapan e-LKPD berbasis PBL-STEM dapat meningkatkan hasil belajar dan kemampuan berpikir kritis siswa pada materi sistem koloid.

Kata kunci: e-LKPD, PBL-STEM, hasil belajar, berpikir kritis.

The purpose of this research is to improve study outcome and critical thinking skill on koloid system matter through implementing electronic student worksheet based on PBL-STEM. This research was conducted through one group pre-test post-test design involving 35 students from class XI Science 1 SMAN 1 Kedamean. The research instruments were teaching learning observation sheet and tests including multiple choice and essay. Data were analyze using descriptive quantitative.  The result of this study showed that the teaching observation and learning process had an excellent results (91.8%.) The average pre-test and post-test scores for student outcomes were 52.3 and 82.3, respectively. The average pre-test and post-test scores for critical thinking skills were 48.89 and 79.71. The percentage of N-gain for student outcomes in the medium category was 25.7% and the high category was 74.3%. The percentage of N-gain for critical thinking skills in the medium category was 74.3% and the high category was 25.7%. The results of this study indicates that the implementation of e-student worksheets based on PBL-STEM can improve student outcomes and critical thinking skills in colloid system material.

Keywords: e-student worksheets, PBL-STEM, student outcomes, critical thinking.