Reflective Thinking in Solving of Open-Ended Problems in Plane Figure for Seventh Graders

摘要

This research aims to describe of students' reflective thinking in solving open-ended problems in plane figure. This research is a case study. The subject was seven graders of SMP N 8 Malang 2018/2019. The research instrument was mathematical open ended test about plane figure. Subjects were chosen based on reflective thinking characteristics of the seven graders. The data collection technique was done by giving the test to the subjects, and the subjects solved the test in writing while doing think out loud. Data analysis was done by: (a) reducting data, (b) displaying data (c) making a conclusion. The results showed that the description of characteristic students' reflective thinking in solving open-ended problems in plane figure included three characteristics. These three characteristics explain the different character of the stages of the students' reflective thinking process in solving open-ended problems. The first characteristic includes stages: (1) students identify the problem; (2) formulate information the problems; (3) compile plans for more than three of these considerations; and (4) implementing a problem solving plan, linking information that is owned by the problem, explaining it well, and checking again. The second characteristic includes: (1) students identify the problem; (2) formulate the problems; (3) draw up a plan on these three considerations; and (4) implementing a problem solving plan, explaining three problem solving solutions, and linking information that is owned by the problem. The third characteristic includes (1) students identify the problem; (2) formulate information the problems; (3) develop a plan for each of these considerations; and (4) implementing a problem solving plan, explaining less than 3 problem solving solutions, linking information that is owned by the problem. The implication of this research is to develop the understanding of students and teachers in learning that can improve reflective thinking in solving each mathema