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Metacognition could help students improve their thinking skills. It makes the students aware of their thinking processes and could assess their outcomes, which are useful in the mathematical problem-solving. This study aims to describe the students' metacognitive processes in solving mathematical problems related to arithmetic sequences. We considered the metacognitive processes in terms of mathematical ability, which were categorized into three levels – high, moderate, and low. The method used in this research was descriptive explorative. We took role as the main instruments while using additional instruments such as question sheets and recording tools. The research subjects consisted of three students of class VIII-A in one of junior high schools in Tarakan. The results of this study were students who have a high level of mathematical ability had better metacognitive processes when solving arithmetic sequence problems than students with moderate and low mathematical abilities. Students with high mathematical abilities tend to evaluate their work after solving problems, while students with moderate and low abilities did not check their work after solving problems. It often makes them did not realize having made mistakes. It could be concluded that students who have high mathematical abilities had better metacognitive processes when solving arithmetic sequence problems than students with moderate and low mathematical abilities. [ABSTRACT FROM AUTHOR]

The aims of this study were to analyze the metacognitive of junior high school students in solving math problems. This study used a qualitative descriptive explorative approach. The subjects in this study were grade VIII students consisting of a female and a male student. The research data were collected through problem-solving instruments and interviews. The results showed that metacognition occurs in female and male students in the activity of completing mathematics, all of which involve metacognition at each stage of Polya's. Although at the time of representing the answers given have differences, but they have the same meaning and purpose. [ABSTRACT FROM AUTHOR]