THE DEVELOPMENT OF MATHEMATICS LEARNING USING A SCRATCH-ASSISTED PROBLEM-BASED LEARNING MODEL TO IMPROVE MATHEMATICAL REPRESENTATION ABILITY

Andi Khol, Ari Woro Kurniasih

Abstract


This study aims to develop and examine the feasibility, readability, and effectiveness of mathematics learning using a Scratch-assisted Problem Based Learning (PBL) model to improve students' mathematical representation abilities on Quadratic Equations. Using the Research and Development (R&D) method with the ADDIE design, this study involved tenth-grade students in Central Java through a Pretest-Posttest Control Group Design. Data were collected via tests, validation sheets, and questionnaires. Results showed the product was highly feasible (88.71%) and had excellent readability (86.47%). The learning was highly effective; the experimental class's posttest average (84.72) exceeded the minimum criteria, achieved 91.67% classical completeness, and obtained a significantly higher N-Gain (0.73) than the control group. Students gave a highly positive response (88.61%). In conclusion, the integration of the PBL model, digital student worksheets (LKPD), and Scratch effectively serves as a cognitive scaffold that facilitates the translation of mathematical representations from verbal to pictorial and symbolic forms, thereby significantly improving students' representation abilities on this specific topic.

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DOI: https://doi.org/10.36987/jpms.v12i2.9759

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