In this study, the effect of using analogy method in unit "the Structure and Properties of Matter", a primary school 7 grade lesson of Science subject, is aimed to be examined. A quasi-experimental model, th one of the types of experimental study with pre-test-post-test control group was used in the study. The study was conducted with the grade students of a state primary school in Civril, Denizli, in the second semester of 7th 2010-2011 academic year. 44 students in total took part in the

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... ; 22 for the control group and 22 for the experimental group. Lessons and applications were carried out in both groups started at the same tine and lasted for 10 weeks. Analogy method was used in the lessons for the experimental group while the lessons for control group were conducted through the constructivist approach. Achievement test fort he structure and properties of matter was applied before and after the applications on both experimental and control groups. Wilcoxon Signed Rank Test and Mann-Whitney U test were used for the statistical anlayses. In conclusion, using the analogy method in Science lessons was determined to increase the students' academic achievements.