ENHANCING MATHEMATICAL COMMUNICATION SKILLS OF GRADE IX STUDENTS USING THE CTL LEARNING MODEL ON QUADRATIC FUNCTION MATERIAL
Abstract
This research aims to determine the difference in improving mathematical communication skills between students using the Contextual Teaching and Learning (CTL) model and students using conventional learning in class IX of SMP Negeri 13 Tanjungpinang. The type of research used is Quasi Experiment with a pretest-posttest control group research design. The population in this study were class IX students of SMP Negeri 13 Tanjungpinang for the 2023/2024 academic year, namely classes IXA and IXB. Samples were taken using the saturated sample determination method. The sample in this study was class IX A as the class and class IX B as the control class. The research data obtained was qualitative and quantitative. Qualitative data was obtained through observation sheets on implementing mathematics learning using the Contextual Teaching and Learning (CTL) model. Meanwhile, quantitative data was obtained from the results of the pretest-posttest of students' mathematical communication skills in the experimental class and control class, which was then determined by the N-Gain of the two sample classes. The research results showed that the average increase in N-Gain in students' mathematical communication skills in the control class was 0.39, and in the experimental class was 0.69. Based on the N-Gain results, it can be concluded that there is an increase in the mathematical communication skills of students who study with the Contextual Teaching and Learning (CTL) learning model compared to students who study with conventional learning.
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