This research focuses on use of Polypad-based educational media to improve the competence of mathematics teachers using the Structural Equation Modelling (SEM) approach. The background to this research includes the challenges in mathematics education in Indonesia, especially in terms of the lack of interactive and relevant educational media, resulting in students' low literacy and numeracy abilities. The problem statement identified is the limitations of media that can affect the effectiveness of mathematics teaching. The main aim of this research is to evaluate the effectiveness of Polypad-based educational media in the context of mathematics learning on the competence of mathematics teachers. The research method used is a quasi-experimental method. Data collection was carried out through questionnaires to measure the effectiveness of Polypad-based educational media in the context of mathematics learning on the competence of mathematics teachers. The quantitative data was analysed using structural equation modelling (SEM) to identify relationships between the variables studied. The research results show that Polypad-based educational media has a significant influence in improving teachers' mathematical competence. SEM analysis revealed a positive relationship between the use of this media and increased competence of mathematics teachers. In conclusion, Polypad-based educational media can increase the effectiveness of mathematics learning and is recommended for application in mathematics education to improve the quality of learning in the future. © 2025, Semarak Ilmu Publishing. All rights reserved.
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