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All Journal Union: Jurnal Ilmiah Pendidikan Matematika Jurnal Pendidikan dan Sosial Humaniora
Putri Br Tarigan
Universitas Negeri Medan
Humanities Education Mathematics

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the Pengaruh alat peraga mesin pembagian berbasis Realistic Mathematic Education (RME) terhadap pemahaman konsep siswa pada materi operasi pembagian di kelas VII SMP Yayasan Perguruan IRA Adelia Br Tarigan; Mikhael Agus Tua Sibarani; Nur Silvina; Putri Br Tarigan; Rafael Tampubolon; Stevania Sri Debbye Br Simbolon; Budi Halomoan Siregar
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 1 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i1.18524

Abstract

The problem found is the low understanding of concepts on division operation material. This is due to the difficulty of understanding the abstract material. This is triggered by the lack of utilization of relevant learning media to overcome it. This study examines the effect of RME-based division machine props on the conceptual understanding of division among seventh-grade students at SMP Yayasan Perguruan IRA. This research design uses a pre-test and post-test control group as part of a quasi-experimental research method with a quantitative approach. The population of this study was all seventh-grade students, with a sample of 18 students in the control class and 18 in the experimental class. In the post-test, the control and experimental classes obtained sig <0.05, so it was stated that there was a significant difference between the experimental class and the control class. Thus, the study results showed a substantial effect in applying Realistic Mathematic Education (RME)-based division machine props on understanding the concept of division operations in class VII of SMP Yayasan Perguruan IRA. The findings highlight the practical effect of RME-based teaching aids in improving students' conceptual understanding and emphasize the need for scalable, inclusive teaching aids in mathematics education.
Analisis Kesalahan Mahasiswa Pendidikan Matematika Universitas Negeri Medan dalam Menegasikan Definisi Limit Fungsi Eka Finanti Septiana Simamora; Imel Simanungkalit; Nurcahaya Br Zandroto; Putri Br Tarigan; Michael Cristian Simanullang
Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora Vol. 5 No. 2 (2025): Juni : Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora
Publisher : AMIK Veteran Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/khatulistiwa.v5i2.5823

Abstract

This study aims to identify students' errors in negating the definition of function limits using the Newman Error Analysis (NEA) approach. The method used is descriptive qualitative, with three selected students from one class totaling 32 people through a purposive sampling technique. Data were obtained from students' written answers to the problem of negating the definition of function limits. The results of the analysis show that students make various types of errors, such as transformation errors, understanding errors, reading errors, process skill errors, and coding errors. These errors reflect students' weak understanding of formal logic structures and the use of symbols in the context of mathematics, especially in the negation process which requires a deep understanding of the meaning of quantifiers and empowerment. This conclusion emphasizes the importance of strengthening mathematics learning and teaching strategies that emphasize conceptual understanding, not just procedural. In addition, learning evaluations need to be designed to explore students' thinking processes more thoroughly in order to accurately identify sources of errors.
Co-Authors Adelia Br Tarigan Budi Halomoan Siregar Eka Finanti Septiana Simamora Imel Simanungkalit Michael Christian Simanullang Mikhael Agus Tua Sibarani Nur Silvina Nurcahaya Br Zandroto Rafael Tampubolon Stevania Sri Debbye Br Simbolon