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All Journal Lentera: Jurnal Ilmiah Kependidikan Mathema: Jurnal Pendidikan Matematika
Santy Setiawati
Lampung University
Education Mathematics

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Efektivitas Model Discovery Learning Terhadap Kemampuan Komunikasi Matematis Siswa Desi Ramadhani; Nurhanurawati Nurhanurawati; Santy Setiawati; Pentatito Gunowibowo
Lentera: Jurnal Ilmiah Kependidikan Vol. 19 No. 1 (2026): Lentera
Publisher : STKIP PGRI Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52217/n0tf1c36

Abstract

The purpose of this study was to determine the effect of discovery learning model on students' mathematical communication skills. All VIII grade students of SMP Negeri 6 Natar even semester of the 2023/2024 academic year as many as 209 students were used as the research population. The samples of this study were VIII E class consisting of 31 students and VIII C class consisting of 29 students selected by purposive sampling technique. The research design used was pre-test post-test control group design with class VIII E as the experimental class and VIII C as the control class. The data of this research is quantitative data obtained through student mathematical communication ability test. Hypothesis test analysis used in this study using t-test and proportion test. The results showed that the average gain data of mathematical communication ability of students who followed the discovery learning model was higher than the average gain data of mathematical communication ability of students who followed conventional learning and the proportion of students who had good categorized mathematical communication ability in the class that followed the discovery learning model was higher than the class that followed conventional learning. Thus, the discovery learning model is effective on students' mathematical communication skills.
The Effect Of The Guided Inquiry Learning Model On Students’ Mathematical Communication Skills Tahta Zulfa Sya'bana; Nurhanurawati; Santy Setiawati
MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 8 No. 2 (2026): MATHEMA
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jm.v8i2.1434

Abstract

This quasi-experimental study aimed to analyze the effect of implementing the guided inquiry learning model on students’ mathematical communication skills. The research population consisted of all eighth-grade students of SMP Negeri 2 Sekampung Udik, East Lampung, in the 2025/2026 academic year, totaling 184 students. The sample of this study comprised students from classes VIII.3 and VIII.5, with 30 and 28 students respectively, selected using the cluster random sampling technique. The research design employed was a posttest-only control group design. The data analyzed were quantitative data on students’ mathematical communication skills obtained through an essay test on the topic of Systems of Linear Equations in Two Variables (SPLDV). Data analysis was conducted using a t-test. The results showed that students who learned using the guided inquiry learning model had higher mathematical communication skills than those who participated in conventional learning. Therefore, it can be concluded that the implementation of the guided inquiry learning model has a significant effect on students’ mathematical communication skills.
Co-Authors Desi Ramadhani Nurhanurawati Nurhanurawati Nurhanurawati Pentatito Gunowibowo Tahta Zulfa Sya'bana