The Effect of Expository Teaching Model on Learning Outcomes of Junior High School Students in Sabang, Aceh

The aim of this study is to determine the level of understanding of optic concept and the changes in student learning behaviour through the application of expository models for students in SMP Negeri 6 Paya Seunara Sabang, Aceh. This study uses an experimental approach involving 62 students from 5 class asses chosen randomly. The intended experiment was the way researchers directly taught all classes. Collecting data to know students’ understanding of the optics matter by using a test. Changes in student learning behaviour were assessed by the observation sheet. The results showed that the application of expository methods cannot improve students' understanding of SMP Negeri 6 Paya Seunara Sabang on the concept of optics matter. The change of student learning behaviour is 74.6%. The combination of learning methods is needed to get better student performance. Keywords—expository model; performance; interest; motivation