Identifikasi Kesulitan Siswa dalam Menyelesaikan Soal pada Materi Program Linier di SMA

Abstract

Linear programming material should be mastered well by students because many everyday problems can basically be solved using the concept of linear programming. However, many students find it difficult to understand the concept of solving problems in determining the optimum value of the objective function on linear programming. The purpose of this study was to determine the identification of Year 11 students' difficulties in solving linear program questions. The research subjects were Year 6 students, selected based on students' ability to solve problems. The results of this study indicate that the difficulty of the concept lies in the students' errors in determining the intersection point in the inequality, and determining the maximum and minimum values on linear programming problems. The principle difficulty lies in the students in determining the sign of the known inequalities, and the errors in solving problems using the elimination and substitution methods. In skill difficulties, the student's error lies in operating the values contained in the questions. Those difficulties led to incorrect answers.