PROFIL FOLDING BACK SISWA DALAM MENYELESAIKAN SOAL CERITA

Abstract

The purpose of this study was to analyze and describe student folding backs in solving linear program problems based on Polya's steps. This research use desciptive qualitative approach. The subjects of this study consisted of 3 subjects, namely S1, S2, and S3 indicated that they were doing folding back. The results of this study indicate that the S1 folding back occurs. S1 is a subject who has problems when defining variables but already knows the steps to work well. Folding back is done by S1 in defining variables. Folding back is also carried out by S1 to determine the point of intersection between two lines. The intercept obtained by S1 is algebraically and geometrically different. S2 is a subject that has not been able to plan completion. Folding back is carried out by S1 in defining variables and formulating constraints. S2 writes constraints in two forms, namely equations and inequalities. Folding back is also carried out by S2 in determining the coordinates of the intersection point, drawing a graphic sketch of the inequality, determining the coordinates of the extreme points, and determining the optimum value. S3 is a subject that has been able to carry out the plan but has less accuracy. This folding back is done by S3 in writing the coordinates of a point, determining the point of intersection between two lines (because it is not careful in calculations), and when drawing inequality graphs (because it does not draw a complete graphic sketch).

Keywords: folding back, problem