摘要：[English]: This research aims to reveal the path of student thinking in solving mathematical problems referring to the construction of reflective abstraction. Reflective abstraction is the process of thinking in constructing logical structures (logico-mathematical structures) by individuals through interiorization, coordination, encapsulation, and generalization. It is an explorative research with the qualitative descriptive approach which involve fourteen undergraduate students enrolled in Calculus course. Data was analyzed through (1) transcribing verbal data (results of think aloud, interviews, observations, field notes, and results of construction of student mathematical concepts), (2) conducting data reduction (coding, drawing thinking structures), (3) analyzing thought processes, and (4) drawing conclusions. We found that the thinking process of students in solving mathematical problems based on the construction of reflective abstraction can occur through the path of interiorization - coordination - encapsulation - generalization then to coordination - encapsulation - generalization. Thus, student’s thinking path in solving mathematical problems is categorized as a simple closed path.
关键词：Jalur berpikir; Masalah limit; Abstraksi reflektif; Jalur tertutup sederhana
