CD Tesis
Pengembangan Modul Ajar Pada Konten Persamaan Dan Pertidaksamaan Linear Satu Variabel Berbasis Model Problem Base Learning (PBL) Untuk Meningkatkan Kecakapan Komunikasi Matematis Peserta Didik Fase D Kelas VII
Mathematical communication skills are essential for students in learning mathematics. One of the objectives of mathematics education is to enable students to express their ideas using symbols, tables, diagrams, or other media to clarify situations or problems. Mathematical communication skills involve the ability to convey mathematical ideas both orally and in writing. They enable students to express mathematical concepts, ideas, or situations in their own words through mathematical representations such as drawings, diagrams, graphs, tables, and the formulation of algebraic equations or mathematical models with precision. Engaging in mathematical communication helps students develop mathematical thinking as it provides opportunities to broaden their reasoning processes. Recognizing the importance of these skills, a teaching module was developed to enhance students’ mathematical communication abilities.
This study aimed to design a Problem-Based Learning (PBL)-based teaching module on the topic of linear equations and inequalities in one variable to support the mathematical communication skills of Phase D students. The study utilized the 4-D development model comprising four stages: Define, Design, Development, and Disseminate. The Define stage included preliminary analysis, student characteristics analysis, concept analysis, task analysis, and learning objectives specification. The Design stage involved creating research instruments and an initial draft of the module. The Development stage included module refinement, expert validation, revisions, and trials to evaluate the module’s practicality. The Disseminate stage involved publishing research findings and distributing the module in book form to schools participating in the study.
The module’s validity was assessed through validator scores, which showed a very high level of validity, with average scores of 96.67, 100, 96.67, 100, and 94.38. Practicality was measured through student and teacher responses, limited trials, field trials, and observation sheets. Limited trials indicated the module met practical criteria with percentages ranging from 75.56% to 82.36%, while field trials showed highly practical criteria with percentages from 86.77% to 90.47%. Teacher responses also indicated high practicality with 96.25%, and observation sheets showed a score of 94.17.
The module’s effectiveness was evaluated through post-test scores and improvements in students' mathematical communication skills. Post-test results showed that the experimental class had higher scores than the control class. The N-Gain analysis revealed a "moderate" improvement for the experimental class and a "low" improvement for the control class. The PBL-based module proved effective in enhancing students' mathematical communication skills.
The study concluded that the developed teaching module on linear equations and inequalities in one variable based on Problem-Based Learning meets the criteria of being valid, practical, and effective. The module is expected to serve as a learning resource and reference for developing teaching modules on other topics. The research findings were also published in accredited journals and presented at research seminars, ensuring wide and effective dissemination.
Keywords: Teaching Module, Problem-Based Learning, Linear Equations and Inequalities in One Variable, Mathematical Communication Skills, Phase D Students
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