ANALISIS KEMAMPUAN BERPIKIR KRITIS SISWA KELAS XI MIPA SMAN 8 PEKANBARU DALAM…

21st century competencies require quality human resources who have critical thinking skills. Improving students' critical thinking skills requires designing learning models that support one of them, namely Problem Based Learning (PBL). SMAN 8 Pekanbaru is one of the favorite schools in the city of Pekanbaru which has used the PBL model in biology learning and the facts found in class During the…