Analysis of Students’ Reasoning in Answering Number Stories using Realistic Mathematics Approach

Abstract

This study aims to analyzes students’ reasoning process in working on story problems using a realistic mathematical approach. The type of research is qualitative research. To obtain data in this study, instruments in the form of descriptive questions were compiled and developed by researchers (test method). To get accurate data, the tests used in this study must meet right test criteria. The research population in this small study was comprised of grade VII students from SMP PGRI Kasihan. Three groups of students participated in this study as research subjects. Data analysis conducted in this study was based on descriptive qualitative analysis techniques. Data analysis covered data reduction, data display, and drawing a conclusion. The results showed several locations of errors, types of errors, and causes of students’ mistakes in solving story problems in class VII SMP PGRI Kasihan, i.e., students still had difficulty in solving problematic challenges that demanded the ability to reason, were still not creative enough to prepare steps or strategy toward building complete answer, and not optimal in creating argumentation to answer problems that require the ability to provide argument or argument in the form of reasoning as the answer.