Pengembangan E-LKPD Berbasis Blended Learning dengan Praktikum Kolaborasi untuk Meningkatkan Keterampilan Berpikir Kritis Siswa pada Materi Transpor Membran 

The Development of Blended Learning E-Worksheet to Improve Students' Critical Thinking Skills on Membrane Transport Material

Abad 21 menuntut peseta didik untuk memiliki keterampilan 4C salah satunya keterampilan berpikir kritis. Materi transpor membran membutuhkan model pembelajaran yang sesuai untuk melibatkan peserta didik aktif saat kegiatan pembelajaran. Model pembelajaran blended learning berpotensi untuk meningkatkan keterampilan berpikir kritis peserta didik materi transpor membran. Penelitian ini bertujuan untuk mengembangkan dan menghasilkan Lembar Kerja Peserta Didik Elektronik (E-LKPD) berbasis blended learning dengan praktikum kolaborasi untuk meningkatkan keterampilan berpikir kritis siswa pada materi transpor membran yang valid, praktis, dan efektif. Penelitian ini merupakan penelitian research and development (R&D) yang mengacu pada model 4-D  (Define, Design, Develop, Disseminate) tanpa menggunakan tahap disseminate. Produk E-LKPD berbasis blended learning yang dihasilkan dengan pemanfaatan laboratorium virtual Olabs memiliki fitur Fenomena Biologi, Wawasan Biologi, Berlath Biologi, Memahami Biologi, Bicara Biologi telah melalui proses telaah, revisis, dan uji coba. Tahapan perancangan E-LKPD dilaksanakan di Prodi Pendidikan Biologi, FMIPA Universitas Negeri Surabaya, sedangkan tahapan uji coba E-LKPD dilakukan pada 30 peserta didik di SMA Negeri 1 Baureno pada bulan Maret 2024. Hasil validitas yang ditinjau dari penilaian tiga validator, menunjukkan hasil persentase keseluruhan aspek sebesar 90,5% dengan kategori sangat valid. Kepraktisan E-LKPD ditinjau berdasarkan hasil angket respon peserta didik yang menunjukan hasil persentase sebesar 94,33% dengan kategori sangat praktis dan hasil angket keterlaksanaan aktivitas peserta didik yang menunjukan hasil persentase sebesar 97,77% yang berkategori sangat praktis. Keefektifan E-LKPD ditinjau berdasarkan hasil peningkatan keterampilan berpikir kritis dengan skor n-gain sebesar 0,71 yang berkategori sangat efektif. Berdasarkan hasil tersebut, maka dapat disimpulkan bahwa E-LKPD berbasis blended learning dengan praktikum kolaborasi pada materi transpor membran valid, praktis, dan efektif dalam meningkatkan keterampilan berpikir kritis.

Kata kunci : E-LKPD, Blended Learning, Keterampilan Berpikir Kritis, Transpor Membran

The 21^st century requires students to have 4C skills, one of which is critical thinking skills. Membrane transport material requires an appropriate learning model to actively involve students during learning activities. The blended learning model has the potential to improve the critical thinking skills of students on membrane transport material. This research aims to develop and produce Electronic Student Worksheets (E-LKPD) based on blended learning with collaborative practicum to improve students' critical thinking skills on valid, practical and effective membrane transport material. This research is research and development (R&D) research which refers to the 4-D model (Define, Design, Develop, Disseminate) without using the disseminate stage. Blended learning-based E-LKPD products are produced through a process of review, revision and testing. The E-LKPD design stage was carried out at the Biology Education Study Program, FMIPA State University of Surabaya, while the E-LKPD trial stage was carried out on 30 students at SMA Negeri 1 Baureno in March 2024. The validity results were reviewed from the assessment of three validators, showing the percentage results the overall aspect is 90.5% with a very valid category. The practicality of E-LKPD was reviewed based on the results of the student response questionnaire which showed a percentage result of 94.33% in the very practical category and the results of the student activity implementation questionnaire which showed a percentage result of 97.77% in the very practical category. The effectiveness of E-LKPD is reviewed based on the results of improving critical thinking skills with an n-gain score of 0.71 which is categorized as very effective. Based on these results, it can be concluded that the E-LKPD based on blended learning with collaborative practicum on membrane transport material is valid, practical and effective in improving critical thinking skills.