STUDENTS' COMPETENCY IN MATHEMATICAL MODELING OF REAL LIFE PROBLEMS ORIENTED BY TRI HITA KARANA

Various research results show that students' abilities in solving real life problems are still lacking. The weak abilities of students can be caused by students not being accustomed to solving real life problems. One of the key aspects in solving real life problems is mathematical modeling based on situation models. Differences in assumptions have an impact on differences in modeling and differences in modeling have implications for differences in solving. The purpose of this study was to determine the description of mathematical modeling competence of real life problems oriented to Tri Hita Karana (THK). The subjects of this study were students and teachers of class VII Laboratory of Universitas Pendidikan Ganesha (Undiksha). The instruments used were tests and interview guidelines, while the data collection techniques used tests and interviews. The data analysis used was descriptive qualitative. The results of the study showed that: students' mathematical modeling for problem 1 with a very good category was 71.05%, good was 15.79%, sufficient was 2.63%, and very bad was 10.53%. For problem 2, students who had mathematical modeling competencies in the very bad category were 100%. For problem 3, students who had mathematical modeling competencies in the very good category were 11.84%, not good were 32.89%, and very bad were 55.27%.