This undergraduate thesis examines the cooperative learning approach and problem solving skills of students in Fatima High School. The study utilized a descriptive correlational research design involving 123 junior students who answered questionnaires about the extent of cooperative learning used by their teachers and their own problem solving abilities. Results showed that cooperative learning approaches were sometimes used by teachers. Students were generally rated highly in problem solving skills. A significant relationship was found between cooperative learning and enhanced problem solving skills. The study concludes that cooperative learning can help improve student problem solving.