Özet:

The purpose of this study is to determine the misconceptions of the 5th class primary school students regarding the ranking, summation-subtraction and multiplication of the fractions; and to investigate the effect of these misconceptions to the solutions of the fraction problems for the students. For this objective, the sample of this study is composed of 30 students who are being educated in 5th class of a secondary school in 2012-2013 teaching year in a province which takes place in the north part of Turkey. As a data compiling tool, 8 open-ended questions were used. The obtained data were analysed by the way of coding according to the content analysis methodology and frequency tables. As the result of the study, it was observed that the majority of the students (22 students) have misconception regarding the ranking, summation-subtraction and multiplication of the fractions; on the other hand it was observed that the students are less in amount (9 students in 7th question, 6 students in 8th question) who obtained false results in fraction problems. It was observed that the success of the fraction problems derive from the modellings which students use in the solution of these kind of questions

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