IDENTIFICATION ERRORS OF FIXED MINDSET STUDENT ON SOLVING MATHEMATICAL DEDUCTIVE REASONING PROBLEM
Yusuf Adhitya1, Sufyani Prabawanto2
1 Universitas Pendidikan Indonesia, Indonesia, yusufadhitya@upi.edu
2 Dr., Universitas Pendidikan Indonesia, Indonesia, sufyani@upi.edu
Abstract
Mathematical mindset is very important for students. A negative student's perception of reasoning has the potential to make students do not understand mathematics meaningfully and make an error. The purpose of this study was to identify students fixed mindset error on solving the deductive reasoning test about number operations. There are two types of mindset: growth mindset and fixed mindset. This study focused only on fixed mindset. Fixed mindset can be divided into strong fixed mindset and fixed mindset with some growth ideas. The types of errors to be investigated were factual, conceptual, and procedural. In addition, the reasoning indicator used only is making conjecture, proofs, and conclusions. The research was conducted in the 7th grade of junior high school. This study used a mindset questionnaire, deductive reasoning test, and interview guidelines. The participant selection was begun by classifying 32 students based on the type of mindset and filtered for fixed mindset group. The questionnaire results found 3 students with fixed mindset. However, there was no student with strong fixed mindset. All three subjects had fixed mindset with some growth ideas. Next, three selected subjects were interviewed. Based on the student answer sheet and their respond during interview, most student errors occurred in making conjecture and proofs. In both of the indicators, all errors tended to procedural error. However, factual and conceptual errors still existed. In general, factual errors occurred due to a lack of understanding of mathematical statements. In general, conceptual error occurs because of the lack of students understanding in concept of multiplication, power of number, and multiplicative number. The procedural error occurs while the student was wrong in manipulating mathematics such as errors in positive or negative numbers and measurement conversion.
Keywords: errors, fixed mindset, deductive, mathematical reasoning, number operation
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