anemonThe study aimed to investigate the effects of portfolio teaching methodin science on 6th grade students'achievement and permanence of learning.Pre-test and post-test control group experimental design was used. Whileexperimental group was taught through portfolio teaching; control group wastaught through discussion, question-and-answer, and expository teaching. Thestudy group consisted of 60 students attending a middle school in Kayseriduring 2016-2017 academic year. In the study that Light and Sound AcademicAchievement Test (LSAAT) prepared by researchers was used, both post-test andretention test scores was found significantly higher than pre-test scoreswhereas no significant difference was found between post-test and retention tests...