Problem-solving ability is one of the mathematical abilities of the current century. This research aims to describe the mathematical problem-solving abilities of SMA/MA students based on the initial mathematics ability category. This research is qualitative research with a case study design involving 2 students each with high, medium and low initial mathematics abilities. Research Instruments The instruments used in this research are: the researcher himself and supporting instruments in the form of initial ability tests, math problem tests, and interview guides. The data collection technique used in this research was by administering an initial ability test, a math problem test, and an interview guide. Data analysis techniques are carried out using the following steps: data reduction, data presentation, data validity, drawing conclusions. The results of the research show that there is a significant relationship between students' initial mathematical abilities and their mathematical problem-solving abilities in trigonometry material. Students with high initial mathematics abilities show better problem-solving abilities compared to students with medium and low initial mathematics abilities.
Nasriati et al. (Sat,) studied this question.