Özet:

The purpose of this study is, evaluating the usefulness of portfolio study in English lessons and the retention of learning with including English in extra-class activities when preparing portfolio. Fifty students and two teachers joined this study. Special state method was used in this study. During the application, control group students continued their lessons with using traditional teaching methods. At the end of the application, posttest was implemented to experimental and control group students to test students’ academic success. Approximately two months later the test which was applied to experimental and control group students as a posttest was applied again as a retention test. According to the results of research, it seemed that experimental group which was applied portfolio was more successful than the control group about academic success level, retention level and creativity.

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