Students' adaptive reasoning in solving geometrical problem

Heryani, Yeni and Madawistama, Sri Tirto and Waluya, Stevanus Budi and Dewi, Nuriana Rahmani Students' adaptive reasoning in solving geometrical problem. AIP.

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Abstract

This study aimed to analyze the students' adaptive reasoning ability in solving geometrical problems. This research is classified as a qualitative descriptive study that seeks to describe the analysis of students' mathematical adaptive reasoning. The technique of collecting data is through a mathematical adaptive reasoning ability test and through interviews. The research instrument is the researcher himself and the test questions of adaptive reasoning abilities. The subjects in the study were taken from class VII students because they have studied the material for flat- sided shapes. The subjects selected in this study were S1, S3, and S16. The three subjects are students who work on adaptive reasoning questions and meet the indicators of adaptive reasoning abilities regardless of right and wrong answers. Analysis of qualitative data that is conducted in this study consists of data reduction, data display, conclusion drawing/verification. Based on the analysis of the ability test, S1 can achieve conjecture, provide reasons or evidence for the truth, find patterns from a mathematical problem, check the validity of an argument draw conclusions from a truth. While S3 and S16 can achieve conjecture, provide reasons or evidence for the fact, cannot find patterns from a mathematical problem, and cannot check the validity of an argument, they can conclude a truth. So from the three subjects, it was found that one student fulfilled all the indicators of reasoning ability correctly, while the other two students had not been able to meet two indicators, namely finding patterns from problems and not being able to check the validity of arguments

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