<![CDATA[Intrapersonal intelligence can help students solve mathematical problems, and each student has different abilities depending on their level of intelligence. This study aimed to determine and explain students' mathematical problem-solving skills on congruence material in relation to intrapersonal intelligence. A qualitative approach with a case study design was used. The instruments included an intrapersonal intelligence questionnaire, a mathematical problem-solving skills test, and an interview guide. The results show that students' intrapersonal intelligence falls into three categories: high (21.43%), medium (60.71%), and low (17.86%). Students with high intrapersonal intelligence were able to fulfill all four indicators of mathematical problem-solving skills: understanding the problem, planning the solution, implementing the solution plan, and reviewing the solution. Students with medium intrapersonal intelligence were able to fulfill three indicators: understanding the problem, planning the solution, and implementing the solution plan. Students with low intrapersonal intelligence were able to fulfill two indicators: understanding the problem and planning the solution.]]>
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