S.A. Sasmita, A. Qohar
Based on the observation result conducted by researchers in class X-IPA 1 of UM Laboratory Senior High School, it could be seen that most students were less active during the learning process. Then from the pretest result of concept understanding problem, it was obtained that 38.89% of the 36 students were in the low category and 16.67% of the 36 students were in the medium category. Therefore, an innovation in implementation of mathematics learning to overcome the students' poor concept understanding is needed. This research aims to describe the implementation of problem based learning model that can improve students' understanding of systems of linear equations in three variables learning in class X-IPA 1 of UM Laboratory Senior High School. This research type is Classroom Action Research. The research result showed that the students' concept understanding experienced an improvement. The percentage of students who had a high and very high concept understanding from cycle I to cycle II increased from 50.00% to 94.44% of the number of students, while the percentage of students who had a low concept understanding from cycle I to cycle II was reduced from 19.44% to 2.78%. © Published under licence by IOP Publishing Ltd.
Mathematics Department, Universitas Negeri Malang, Jl Semarang 5, Malang, 65145, Indonesia
