Identifying the Students\' Proportional Reasoning

Proportional reasoning is one of the most important abilities to be developed during the middle grades. Using proportional reasoning, students consolidate their knowledge of elementary school mathematics and build a foundation for high school mathematics. The aim of this study is to identify students' proportional reasoning. In order to do so, a literature study was carried out on students' proportional reasoning. After that, an individual written test on ratio and proportion was done, followed by a brief interview. Twenty-five students from grade seven did the written test and interviewed. Data analysis revealed that student was trying to use cross-product in inappropriate problem, avoid form an equation, a student was trying tounitizing but got stuck when adenominator is a large number, student still struggle at inversely proportional problem.