Uji Coba Ebook Berorientasi Problem Based Learning dalam Materi Cahaya dan Alat Optik untuk Melatih Kemampuan Berpikir Kritis

Problem Based Learning-Oriented Ebook Trial on Light And Optical Instruments Topic to Train Critical Thinking Skills

Tujuan dari penelitian ini yaitu mendeskripsikan fitur ebook berorientasi problem based learning dalam materi cahaya dan alat optik untuk melatih kemampuan berpikir kritis siswa. Dalam penelitian ini menggunakan metode pre experimental dengan desain one group pretest posttest. Uji coba dilakukan di SMPN 1 Pandaan tahun ajaran 2020/2021 dengan partisipan penelitian 30 siswa kelas VIII. Kelayakan ebook berorientasi problem based learning memperoleh skor validasi rata-rata 95% dengan memperoleh kriteria sangat baik dan nilai rata-rata respons siswa terhadap ebook 88,67% dengan kategori sangat baik. Kemampuan berpikir kritis siswa meningkat setelah menggunakan ebook berorientasi problem based learning dengan skor N-gain 0,4197 dengan kategori sedang. Keterlaksanaan pembelajaran dengan menggunakan ebook berorientasi problem based learning memperoleh respons sangat baik dari siswa dengan nilai rata-rata 87%. Kesimpulan dari penelitian ini yaitu ebook berorientasi problem based learning dalam pembelajaran materi cahaya dan alat optik dapat digunakan untuk melatih kemampuan berpikir kritis siswa.

The purpose of this research is to describe the features of problem based learning-oriented ebook on light and optical instruments topics to train students’ critical thinking skills. In this research, a pre-experimental method with one group pretest-posttest design was used. This research was conducted at SMPN 1 Pandaan in the academic year of 2020/2021 to 30 eight grade students as participants. The feasibility of problem based learning-oriented ebooks obtained an average validation score of 95% which belongs to very good criteria and an average students’ responses score of 88,67% which belongs to very good criteria. The ability of students to think critically increases after using problem based learning-oriented ebook by the average N-gain score of 0,4197 which belongs to the moderate category. Learning implementation using problem based learning-oriented ebooks gets a very good response from the students by the average score of 87%. The conclusion of this research is that problem based learning-oriented ebooks can be applied to train critical thinking skills of the students.