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The aim of this study is to know the level of comprehension to understand the concept of optical through an expository model 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 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 behavior is 74.6%. Keywords—analysis; optical concepts; expository model

Analysis of Optical Concepts with Understanding Expository Model for SMP