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Titin Masfingatin, Titin
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Geo-Sheet: Interactive GeoGebra-integrated learning material to enhance students’ creative mathematical reasoning in analytic geometry Masfingatin, Titin; Krisdiana, Ika; Setyansah, Reza Kusuma
KALAMATIKA Jurnal Pendidikan Matematika Vol 11 No 1 (2026): KALAMATIKA April 2026
Publisher : FKIP Universitas Muhammadiyah Prof. DR. HAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/KALAMATIKA.vol11no1.2026pp95-119

Abstract

In analytic geometry instruction, students’ reasoning often remains procedural, limiting opportunities to develop Creative Mathematical Reasoning (CMR). CMR refers to the ability to construct reasoning that is novel to the learner, justified as plausible, and grounded in intrinsic mathematical properties. This study aimed to design and evaluate Geo-Sheet, a GeoGebra-integrated interactive learning material intended to support students’ CMR in analytic geometry. The research involved 30 undergraduate students enrolled in an Analytic Geometry course in a Mathematics Education program at a private university in East Java, Indonesia. An Educational Design Research (EDR) approach was employed, consisting of preliminary and formative evaluation phases (self-evaluation, expert review, one-to-one, small group, and field testing). Geo-Sheet was assessed in terms of validity, practicality, and potential effect. Expert judgment indicated high validity (Aiken’s V = 0.82), and student questionnaires showed high perceived practicality (70% in the high category). Pre- and post-test results, supported by observations and interviews, revealed improvements across CMR indicators. These findings suggest that systematically designed GeoGebra-based materials that integrate dynamic visualization and guided exploration have the potential to create productive learning conditions for the development of higher-order mathematical reasoning.
Co-Authors Davi Apriandi Edy Suprapto Fatriya Adamura Febtalinda, Rizqiana Hanida, Rifa Arma Ika Krisdiana Kusuma Setyansah, Reza Muhtadi, Abid Humam Mulyani, Resti Eka Murtafi’ah, Wasilatul Nisa, Khoirotun Putri, Rahel Elsa Dwi Restu Lusiana Reza Kusuma Setyansah, Reza Kusuma Rohmatin, Dewi Nur Suparwati, Alip Swasti Maharani, Swasti Tri Andari Vera Dewi Susanti Wasilatul Murtafiah Wasilatul Murtafi’ah, Wasilatul Widjayanti, Wigita Rezky Widodo, Catur Wahyu