The Critical Thinking Process of Senior High School Students in Problem-Solving of Linear Equations System

Abstract

In this 21st century, having critical thinking skill is a must. This critical thinking skill will lead students to solve the problem they find. Problem solving, one of mathematical abilities, is an advance ability that need more complex thinking process, like critical thinking. The purpose of this study is describing senior high school students critical thinking process in solving problem of linear equations system. This is descriptive qualitative research with two tenth grade students of SMA Negeri 1 Klego as the subjects. In this study, purposive sampling method is used to choose the subjects of the research. To collect the data of student's critical thinking process, used tests, interviews, and observations. The study result showed that the students' critical thinking process had not fully worked out. Both subjects can go through the clarification step of critical thinking well, but not in the analysis and strategy step.