Open AccessError analysis in solving the linear equation system of three variables using Polya’s problem-solving steps
Author(s) -
R B Wiyah,
Nurjanah Nurjanah
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1882/1/012084
Subject(s) - forgetting , equation solving , structural equation modeling , linear equation , mathematics , data collection , computer science , mathematics education , calculus (dental) , statistics , psychology , differential equation , mathematical analysis , cognitive psychology , medicine , dentistry
Recently, students still often have difficulties and share common mistakes in solving the linear equation system of three variables. This qualitative descriptive research describes the errors and causes of students’ errors in solving the linear equation system of three variables using Polya’s problem-solving steps. The subjects were 33 students of Grade 10 Science at one of the Senior High School in Indralaya. The data collection techniques used observation, student worksheets, and interviews. The results showed there were several students’ errors and the causes of students’ errors in solving the problems. These errors are errors in identifying the known and asked information, errors in making mathematical models of problems, errors in calculations, errors in arranging the linear equation system of three variables, and errors in giving valid reasons for their answers. The causes of these errors are the limited time for understanding the problem, careless in doing calculations, forgetting the formulas, and lacking understanding of variables concept.