Tina Yunarti
University of Lampung

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Deskripsi Percakapan Kritis Matematis Siswa dalam Pembelajaran Socrates Saintifik Deta Marlita; Tina Yunarti; Widyastuti Widyastuti
Limacon: Journal of Mathematics Education Vol 1, No 2 (2019): Limacon Journal of Mathematics Education
Publisher : Limacon: Journal of Mathematics Education

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Abstract

This qualitative research aimed to describe the critical mathematical discourses in Socrates' scientific learning. The subjects of this study were 9 students of class VII-2 of SMP Global Madani Bandar Lampung in the academic year 2018/2019 who were chosen purposively. Then, 9 students were selected as research subjects consisting of three students with high, medium, and low mathematical abilities. This research data was qualitative data about students’ critical mathematical discourses obtained through observation, interviews, and documentations. Furthermore, data analysis was carried out through three stages, namely data reduction, data display, and conclusion drawing. Based on the results of the study, it was concluded that: (1) The students’ critical mathematical discourses that occurred in Socrates scientific learning more dominantly led to indicators of students’ critical thinking abilities, namely interpretation and analysis, (2) Students’ mathematical critical discourses appeared more often when the teacher asked Socrates questions of type of clarification and the reasons and evidence of the investigation, (3) Students’ mathematical critical discourses were more dominant when students do the scientific stages of associating and communicating.
Deskripsi Self-Efficacy Berpikir Kritis Matematis Siswa pada Pembelajaran Socrates Saintifik Khusnul Khotimah; Tina Yunarti
Limacon: Journal of Mathematics Education Vol 1, No 1 (2019): Limacon Journal of Mathematics Education
Publisher : Limacon: Journal of Mathematics Education

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Abstract

This qualitative research was aimed to describe student's mathematical critical thinking self-efficacy on Socrates' scientific learning. The subjects of this research were the students of the VII-A class of SMPN 1 Natar academic year 2017/2018. This research data was qualitative data about mathematical critical thinking of students obtained through scale sheets of self-efficacy, observation sheets, interviews, and journals. Data analysis was done through three stages, namely data reduction, data presentation, and conclusion verification. Based on the result of the research, it could be concluded that in critical mathematical conversation there was a student's mathematical critical thinking self-efficacy which predominantly emerge during mathematics learning by using the Socrates Scientific method. They were feeling interested, optimistic and confident in the dimensions of magnitude/level, also increasing the efforts in the dimensions of strength, and were guided by previous learning experience in the dimension of generality.
The Effect of Learning Media Use on Conceptual Understanding Ability in Students with Low Mathematical Ability Salsabila Intan; Tina Yunarti; Santy Setiawati
Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 14 No. 1 (2026): Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam
Publisher : Prodi Pendidikan Matematika FTIK IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/jpmipa.v14i1.7201

Abstract

Abstract: Conceptual understanding is a fundamental skill essential for students in learning mathematics. This study aims to analyze the effect of instructional media on the conceptual understanding of students with low mathematical ability. The subject matter focused on linear equations and inequalities in one variable, utilizing instructional media such as comic-based worksheets, snakes and ladders games, buffalo paper, domino cards, and word puzzles. The population consisted of 233 seventh-grade students at a public junior high school in Bandar Lampung during the first semester of the 2024/2025 academic year, with a sample of 29 students selected through purposive sampling. The research employed a quasi-experimental method with a one-group pretest-posttest design, using the Mid-Semester Examination scores as the pretest. The Wilcoxon test results indicated sig. (2-tailed) = 0.00 < 0.05, showing the use of instructional media has a positive effect on the conceptual understanding of students with low mathematical ability. Abstrak: Pemahaman konsep merupakan keterampilan dasar yang penting bagi siswa dalam mempelajari matematika. Penelitian ini bertujuan menganalisis pengaruh penggunaan media pembelajaran terhadap pemahaman konsep siswa dengan kemampuan matematika rendah. Materi yang dikaji adalah persamaan dan pertidaksamaan linear satu variabel, dengan media berupa LKPD komik matematika, permainan ular tangga, kertas buffalo, kartu domino, dan puzzle kata. Populasi penelitian terdiri atas 233 siswa kelas VII di salah satu SMP Negeri Bandar Lampung pada semester gasal 2024/2025, dengan sampel 29 siswa yang dipilih melalui purposive sampling. Penelitian menggunakan metode quasi eksperimen dengan desain one group pretest-posttest, dengan nilai pretest diambil dari Ujian Tengah Semester. Hasil uji Wilcoxon menunjukkan sig.(2-tailed) = 0,00 < 0,05, yang berarti penggunaan media pembelajaran berpengaruh positif terhadap pemahaman konsep siswa berkemampuan matematika rendah.