Application of Problem-Based Learning Model STEM-Based on Biology Lessons for High School Students Communication Skills

Good quality communication skills are not evenly distributed among students in secondary schools. This quantitative study with a quasi-experimental method aims to describe high school students' through STEM-based PBL learning Biology, oral and written PBL-based STEM Biology lessons by gender. The research design is Posttest Only Control Design carried out on class XI of SMAN Terpadu Madani Palu population 7 classes totaling 220 students. sample used 2 64 Determination the purposive sampling considering number cognitive abilities homogeneous. Data were obtained tests using multiple-choice reasoned given during post-test. observation student activities process. results showed that applying had significant effect compared direct learning, better than female significantly male