Pengembangan E-LAPD Berbasis Project Based Learning (PjBL) Untuk Meningkatkan Kemampuan Berpikir Kritis Peserta Didik Pada Materi Kimia Hijau

The Development Of Student Electronic Worksheet Based On Project Based Learning (PjBL) To Improve Student Critical Thinking Skills In Green Chemistry Materials

Penelitian ini bertujuan untuk mendeskripsikan kelayakan E-LAPD berbasis project based learning (PjBL) untuk meningkatkan kemampuan berpikir kritis peserta didik pada materi kimia hijau dengan kriteria kelayakan meliputi validitas, kepraktisan, dan keefektifan. Jenis penelitian ini adalah penelitian pengembangan dengan desain One Group Pretest Posttest dan menggunakan model 4D yang dibatasi hingga tahap 3D. Penelitian ini dilakukan pada bulan April 2025 di SMA Negeri 7 Surabaya dengan responden penelitian yaitu peserta didik kelas X-6. Kelayakan E-LAPD dievaluasi berdasarkan tiga aspek: validitas, kepraktisan, dan keefektifan. Validitas diukur berdasarkan hasil penilaian lembar validasi oleh tiga validator dan diperoleh hasil untuk validitas isi dan konstruk memperoleh modus skor  3 (kriteria baik). Kepraktisan diukur berdasarkan hasil angket respon dengan didukung hasil dari lembar observasi aktivitas peserta didik. Berdasarkan angket respon peserta didik memperoleh persentase sebesar 97,69% (kategori sangat praktis) dan didukung hasil observasi aktivitas untuk pertemuan pertama pada E-LAPD 1 memperoleh persentase sebesar 96,30% dan pada E-LAPD 2 memperoleh persentase sebesar 97,04%. Untuk pertemuan kedua pada E-LAPD 1 memperoleh persentase sebesar 97,78% dan pada E-LAPD 2 memperoleh persentase sebesar 97,04%. Keefektikan diukur melalui tes kemampuan berpikir kritis dan tes kognitif. Tes kemampuan berpikir kritis dianalisis dengan N-gain score dan memperoleh skor sebesar 0,76 (kategori tinggi) dan didukung dengan hasil tes kognitif peserta didik yang memperoleh persentase ketuntasan klasikal sebesar 100% tuntas. Berdasarkan hasil validitas, kepraktisan, dan keefektifan, E-LAPD yang dikembangkan dinyatakan layak untuk digunakan dalam kegiatan pembelajaran pada materi kimia hijau.

Kata kunci: E-LAPD, project based learning (PjBL), kimia hijau, berpikir kritis

This study aims to describe the feasibility of student electronic worksheet based on project-based learning (PjBL) to improve students critical thinking skills on green chemistry material with eligibility criteria including validity, practicality, and effectiveness. This type of research is development research with a One Group Pretest Posttest design and uses the 4D model which is limited to the 3D stage. This research was conducted in April 2025 at SMA Negeri 7 Surabaya with research respondents namely class X-6 students. The feasibility of student electronic worksheet was evaluated based on three aspects: validity, practicality, and effectiveness. Validity was measured based on the results of the validation sheet assessment by three validators and the results obtained for content and construct validity obtained a mode score ≥ 3 (good criteria). Practicality is measured based on the results of the response questionnaire supported by the results of the student activity observation sheet. Based on the students response questionnaire obtained a percentage of 97,69% (very practical category) and supported by the results of activity observations for the first meeting on student electronic worksheet-1 obtained a percentage of 96,30% and on student electronic worksheet-2 obtained a percentage of 97,04%. For the second meeting, Student electronic worksheet-1 obtained a percentage of 97,78% and student electronic worksheet-2 obtained a percentage of 97,04%. Effectiveness is measured through critical thinking skills tests and cognitive tests. The critical thinking ability test was analyzed by N-gain score and obtained a score of 0,76 (high category) and supported by the results of the cognitive test of students who obtained a percentage of classical completeness of 100% complete. Based on the results of validity, practicality, and effectiveness, the developed student electronic worksheet is declared feasible for use in learning activities on green chemistry materials.

Keywords: electronic worksheet, project based learning (PjBL), green chemistry, critical thinking