STUDENTS’ MATHEMATICAL REASONING IN POSING MATHEMATICAL PROBLEM IN SEMI-STRUCTURED SITUATION

ARDIAN DWI KUSUMA MUKTI

Abstract


Abstract


Mathematical reasoning is the process of thinking to obtain new conclusions by the facts that have been owned logically about and with mathematical objects which includes activities showing understanding, making and testing the conjecture , drawing logical conclusions, and providing evidence of the truth. Problem posing can use to identify students’ mathematical reasoning. Mathematical problem posing is task that asks students’ to make mathematical problem from given situation. The situation that given on problem posing in this research is semi-structured situation. The purposes of the research are describing students’ mathematical reasoning in problem posing in semi-structured situation


The method of the research are qualitative descriptive. Subjects of the research is 2 students of class VIII-E of SMP Negeri 22 Surabaya.   Data collected by using mathematical problem posing test and interview. Mathemathical problem posing test is using to knowstudents’ mathematical reasoning in problem posing and to choose subjects of research. Interview is using to show more about students’ reasoning in mathematical problem posing.


The result of the research showed that in semi-structured situation students showed activities that may appear appropriate reasoning indicators for every step of posing a problem. Student in semi-structured problem posing, choose clear informations then modify the informations to pose problem.


Keywords: mathematical Reasoning, Problem Posing, Mathematics         


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