JUNIOR HIGH SCHOOL STUDENTS’ STRATEGY IN SOLVING GEOMETRY PROBLEM BASED ON MATHEMATICS ABILITY

Abstract

Abstract

This research aims to describe Junior High School students’ strategy in solving geometry problem based on mathematics ability. This is a descriptive research with qualitative approach. Subject was chosen from test of mathematics ability result. Subjects are students in class IX-i SMPN 1 Gresik who already studying 3D figure with flat side material. Data research taken from three subject with high mathematics ability and three subject with medium mathematics ability who are given test of solving geometry problem and interview. Based on data analysis, it found that student with high mathematics ability consider writing an equation or open sentences (WE) strategy, drawing picture, acting it out, and using model (DP) strategy, guessing and checking (GC) strategy and logical reasoning (LR) strategy. While student with medium mathematics ability consider writing an equation or open sentences (WE) strategy, drawing picture, acting it out, and using model (DP) strategy, and guessing and checking (GC) strategy. Based on data analysis, teacher are suggested to create learning activity that can stimulate student in using logical reasoning so that their logical reasoning can be developed.

Keywords: strategy, geometry problem, mathematics ability