Improvement students’ achievement in elementary linear algebra through APOS theory approach

Abstract

This study aimed to improve students’ achievement in elementary linear algebra through APOS theory approach. This study is pre-experimental one-shot case study design. The sample were 32 students who participating in the lecture of chemistry mathematics II academic year 2018/2019 at Andalas University. Instrument used in this study was problem solving test in elementary linear algebra which consisted of four item test that measures the ability to solve daily life problem with system of linear equation, determine determinant of the matrix, determine invers of matrix, and determine eigen value and eigen vector of matrix. Descriptive statistics and t-test with α = 0.05 level of significance were used for data analysis. The results show that: (1) APOS theory approach can improve students’ achievement in elementary linear algebra significantly and (2) there was no a significant gender gap in students’ achievement in elementary linear algebra.