High-capability students' difficulties in problem solving on the concept of ratio

Abstract

This research is descriptive qualitative study which aimed to describe students' difficulties in problem-solving ratio with high-capability. Two students were chosen as students with high-capability in mathematics. This study used qualitative method. The result of this study showed that there were two difficulties in problem-solving ratio, including the difficulty in conducting cross-product and the difficulty in determining the ratio. The factor that causes students feeling difficulty in solving ratio is the students who accustomed to using the formula contained in the book. The solution offered to reduce that difficult, teachers should give exercises by using the concept of the ratio as the solution so thatt the students do not just memorize the formula from their books.