Development of Student Worksheet based Guided Inquiry to Train Students Critical Thinking Skills on Buffer Solution

Abstract

Abstract: Development of Student Worksheet based Guided Inquiry to Train Students Critical Thinking Skills on Buffer Solution. Based on the context of the problems found in the pre-research, this study was conducted to describe the feasibility of guided inquiry-based worksheets to train critical thinking skills on buffer solution material developed in terms of validity, practicality, and effectiveness. This research used the 4-D research method. The limited trial was tested on 36 students of class XI IPA 2 SMA Negeri 1 Driyorejo. The results showed that the worksheet produced was considered very valid in terms of content and construct validity, with a mode score of 5. Practicality obtained an average response questionnaire score of 83.88% supported by observation results with an average percentage of 86.90%, 86.90%, and 95.23% with practical categories. Effectiveness is obtained from the students' critical thinking ability test, namely the pre-test and post-test with a percentage of 79.65% in the high category, 56.89% in the medium category and 24.16% in the low category.

Keywords: Worksheet feasibility, guided inquiry, critical thinking skill, buffer solution.

Abstrak:. Pengembangan LKPD Berbasis Inkuiri Terbimbing untuk Melatihkan Keterampilan Berpikir Kritis Siswa pada Materi Larutan Penyangga. Berdasarkan konteks permasalahan yang ditemukan pada pra-penelitian, penelitian ini dilakukan untuk mendeskripsikan kelayakan lembar kerja berbasis inkuiri terbimbing untuk melatihkan keterampilan berpikir kritis pada materi larutan penyangga yang dikembangkan ditinjau dari validitas, kepraktisan, dan keefektifan. Penelitian ini menggunakan metode penelitian 4-D. Uji coba terbatas diujicobakan kepada 36 siswa kelas XI IPA 2 SMA Negeri 1 Driyorejo. Hasil penelitian menunjukkan bahwa lembar kerja yang dihasilkan dinilai  sangat valid dari segi validitas isi dan konstruk, dengan skor modus 5. Kepraktisan mendapatkan rata-rata skor angket respon sebesar 83,88% didukung dengan hasil observasi dengan rata-rata persentase sebesar 86,90%, 86,90%, dan 95,23% dengan kategori praktis. Keefektifan diperoleh dari tes kemampuan berpikir kritis siswa yaitu pre-test dan post-test dengan persentase 79,65% kategori tinggi, 56,89% kategori sedang dan 24,16% kategori rendah.

Kata kunci: Kelayakan LKPD, inkuiri terbimbing, keterampilan berpikir kritis, larutan penyangga.

DOI: 10.23960/jppk.v12.i2.2023.22