Analytical thinking skills are important for helping students understand and solve problems systematically. However, research examining the influence of students’ mathematical mindsets on their analytical thinking skills remains limited. This study aimed to analyze junior high school students’ analytical thinking skills in solving straight-line equation problems based on their mindset orientation. Analytical thinking skills in this study were analyzed based on three analytical thinking aspects: differentiating, organizing, and attributing. A descriptive qualitative approach with a case study design was employed. The participants were 43 eighth-grade students from a junior high school in Cimahi, Indonesia. Data were collected through an analytical thinking test, a mathematical mindset questionnaire, and semi-structured interviews. Based on the questionnaire results, students were classified into three mindset categories: Fixed Mindset with Some Growth Mindset Ideas, Growth Mindset with Some Fixed Mindset Ideas, and Strong Growth Mindset. The findings showed that students with a strong growth mindset demonstrated better performance across the aspects of differentiating, organizing, and attributing. In contrast, students with stronger fixed mindset tendencies experienced greater difficulties in these aspects. This study contributes to mathematics education practice by providing insight for teachers to design learning strategies that foster both students’ mindset and analytical thinking skills.
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