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Nurjanah

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Open access Jul 2026

Unveiling Students’ Cognitive Obstacles in Constructing Quadratic Function Representations: An APOS Theory-Based Analysis

Quadratic functions are a fundamental topic in the high school curriculum; however, many students struggle to construct and connect various forms of mathematical representation. These difficulties are not merely procedural but manifest as cognitive obstacles, namely, when prior knowledge that is usually sufficient beco...

H. Siregar, Nurjanah, Darhim et al. · 0 citations

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