Abstract
Using GeoGebra to develop learners' mathematical connections between geometry and algebra lays the foundation for introducing analytic geometry, primarily aiding students in establishing meaningful links between different mathematical concepts. The overarching goal of this study was to assess the efficacy of GeoGebra as a dynamic digital tool for developing Grade 9 learners' mathematical connections in geometry, particularly by fostering the integration of algebraic and geometric concepts. The study was underpinned by Realistic Mathematics Education (RME) and constructivist learning theories as it is the solution to the global demand for mathematics teaching reformation.
The research was carried out within a pragmatic research paradigm, consistent with the philosophical principles of pragmatism. Data was collected through an explanatory sequential mixed methods, with procedures including pre-post-tests, non-participatory observations, semi-structured interviews with teachers, and task-based interviews with learners. Data analysis employed independent t-tests to assess differences between pre-test and post-test results.
The study shows that Grade 9 students from Quintile 4 schools perform below 60% on average. The use of GeoGebra, a tool that connects algebra and geometry, significantly improves their performance. The tool was also praised by learners in interviews for its role in problem-solving and enhancing their understanding of the subject. The study emphasized the importance of engaging strategies like GeoGebra in teaching methods and the need for effective classroom strategies to build foundational knowledge. The study also found that teachers' expectations of self-study may also contribute to gaps in understanding.
The findings concluded that there was no significant difference in pre-test scores between the experimental and control groups, but the GeoGebra
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intervention significantly improved the experimental group's performance. As a result, it is confirmed that the use of GeoGebra can be beneficial in improving learners’ mathematical connection ability in geometry. Hence, the focus of this study is to explore the effective utilization of GeoGebra in enhancing learners' Mathematical Connection Ability (MCA) during the process of learning geometry through algebra.