LKPD merupakan perangkat pembelajaran melalui kegiatan diskusi kelompok dan praktikum. Penelitian ini bertujuan untuk (i) mendeskripsikan keterlaksanaan LKPD berbasis PBL menggunakan instrumen penilaian secara online melalui G-Form untuk meningkatkan keterampilan berpikir kritis peserta didik SMA kelas XI; (ii) mendeskripsikan peningkatan keterampilan berpikir kritis peserta didik SMA kelas XI setelah diimplementasikan LKPD berbasis PBL; dan (iii) mendeskripsikan respon peserta didik terhadap implementasi LKPD berbasis PBL. Jenis penelitian ini adalah pre-eksperimental dengan desain one group pre-test post-test. Subjek penelitian ini peserta didik SMA kelas XI-1, XI-2, dan XI-3 di SMA Dr. Soetomo, Surabaya tahun ajaran 2023/2024. Teknik pengumpulan data menggunakan observasi, validasi, tes dan angket respon. Data dari penelitian ini yaitu keterlaksanaan LKPD berbasis PBL, hasil pre-test dan post-test keterampilan berpikir kritis, serta angket respon. Hasil keterlaksanaan LKPD berbasis PBL dianalisis dengan analisis deskriptif, hasil pre-test dan post-test keterampilan berpikir kritis dianalisis dengan uji Wilcoxon Signed Rank Test untuk mengetahui beda mean yang signifikan antara pre-test dan post-test dan n-gain, serta hasil respon peserta didik dianalisis menggunakan angket respon. Penilaian dalam penelitian ini menggunakan G-Form pada pre-test dan post-test. Dari penelitian ini, LKPD berbasis PBL menggunakan instrumen penilaian secara online melalui G-Form didapatkan hasil bahwa (i) terlaksana dengan sangat baik untuk meningkatkan berpikir kritis peserta didik SMA kelas XI dengan kategori sangat baik dengan nilai 3,7 untuk kelas XI-1, kategori sangat baik dengan nilai 3,8 untuk kelas XI-2, dan kategori sangat baik dengan nilai 3,9 untuk kelas XI-3; (ii) dapat meningkatkan keterampilan berpikir kritis peserta didik SMA kelas XI dengan n-gain berkategori sedang pada ketiga kelas; (iii) mendapatkan respon sangat baik di kelas XI-1 sebesar 83,1%, mendapatkan respon baik di kelas XI-2 sebesar 80,1%, dan mendapatkan respon baik di kelas XI-3 sebesar 73%. Berdasarkan hasil penelitian, dapat disimpulkan bahwa implementasi LKPD berbasis PBL mampu meningkatkan keterampilan berpikir kritis peserta didik SMA kelas XI.

Kata Kunci         : Keterampilan berpikir kritis dan LKPD berbasis PBL

LKPD is a learning tool through group discussion and practicum activities. This research aims to (i) describe the implementation of PBL-based LKPD using online assessment instruments via G-Form to improve the critical thinking skills of class XI high school students; (ii) describe the improvement in critical thinking skills of class XI high school students after implementing PBL-based LKPD; and (iii) describe students' responses to the implementation of PBL-based LKPD. This type of research is pre-experimental with a one group pre-test post-test design. The research subjects were high school students in classes XI-1, XI-2, and XI-3 at SMA Dr. Soetomo, Surabaya academic year 2023/2024. Data collection techniques use observation, validation, tests and response questionnaires. The data from this research are the implementation of PBL-based LKPD, pre-test and post-test results of critical thinking skills, as well as response questionnaires. The results of the implementation of PBL-based LKPD were analyzed using descriptive analysis, the results of pre-test and post-test critical thinking skills were analyzed using the Wilcoxon Signed Rank Test to determine the significant mean difference between pre-test and post-test and n-gain, as well as response results students were analyzed using a response questionnaire. Assessment in this study used the G-Form in the pre-test and post-test. From this research, PBL-based LKPD using online assessment instruments via G-Form showed that (i) it was implemented very well to improve the critical thinking of class XI high school students with a very good category with a score of 3.7 for class XI-1, very good category with a score of 3.8 for class XI-2, and very good category with a score of 3.9 for class XI-3; (ii) can improve the critical thinking skills of class XI high school students with n-gain in the medium category in all three classes; (iii) getting a very good response in class XI-1 of 83.1%, getting a good response in class XI-2 of 80.1%, and getting a good response in class XI-3 of 73%. Based on the research results, it can be concluded that the implementation of PBL-based LKPD is able to improve the critical thinking skills of class XI high school students.

Keywords            : Critical thinking skills and PBL-based LKPD