EFEKTIFITAS PEMBELAJARAN BERBASIS MASALAH (PBM) DAN STRATEGI KOOPERATIF TERHADAP KEMAMPUAN MENYELESAIKAN MASALAH DAN HASIL BELAJAR KOGNITIF BIOLOGI DITINJAU DARI KEMAMPUAN AKADEMIK AWAL SISWA KELAS X SMA NEGERI 3 MATARAM

: Currently the school has not implemented a learning environment that develops students' skills, particularly in the ability to solve problems and cognitive learning outcomes of students. So the level of students' thinking skills are only at the level of the low-level thinking and reasoning that does not have the ability to solve real problems. Approach to problem-based learning and cooperative learning strategies into alternative learning approach that can drive the students' learning outcomes. This study aimed to investigate the effect of the application of learning (STAD integrated PBL, PBL and STAD), academic ability of students and interaction between learning strategy and academic level of students' ability to problem-solving ability and cognitive learning outcomes biology class X student of SMAN 3 Mataram. This research is a quasi-experiment with pretest Posttes Nonequivalent Control Group Design, treatment with 2 x 3 factorial setting. The study population of 480 students in 12 classes spread. Sampling technique selected by random cluster sampling and obtained 120 students spread into 3 classes. Statistical test results showed a significant effect (p 0,05).