The aim of this study is to determine the Effect of Storyline Method on Student Achievement In 5th Grade Science and Tecnology Courses. This study was conducted experimentally on the 5th grade students studying at Alpaslan School in 2010-2011 academic year. 26 students were included in the study, 13 of them were chosen as the sample group and 13 of them as control group. The achievement level about the unit in sample group which were taught by storyline method was higher than the control group which was taught by teacher centered and traditional method. There was a meaningful significant favour of the control group. The instruction conducted by storyline method was effective on increasing the achievement level of the students.