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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar
Christania Rossalin Sagala
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Analisis Potensi Miskonsepsi Dalam Penyajian Materi Pertidaksamaan Linier Satu Variabel Pada Buku Teks Matematika SMP Nabila Azuhra; Muhammad Rasyid Mondol; Aulia Syahputri; Christania Rossalin Sagala; Nurul Sakinah; Wingston Leonard Sihombing
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025 Terbit
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.33108

Abstract

junior high school level. However, in practice, it often leads to misconceptions among students. One of the main contributing factors is the way the material is presented in textbooks, which serve as the primary reference for both teachers and students. This study aims to analyze the potential misconceptions found in two mathematics textbooks, namely Matematika SMP/MTs Kelas VII Semester 1 published by BS Press (2017) and Persamaan dan Pertidaksamaan Linear Satu Variabel written by Winie Ananda (2022). This research employed a descriptive qualitative approach using content analysis. The instrument focused on three aspects: (1) the rule of reversing inequality signs when multiplying or dividing by negative numbers, (2) the conceptual differences between linear equations in one variable (PLSV) and linear inequalities in one variable (PtLSV), and (3) the representation of solution sets on the number line. Thefindings indicate that both textbooks still contain potential sources of misconceptions. The use of the term “root of PtLSV” is conceptually inaccurate, the rule of sign reversal is presented only procedurally, the distinction between PLSV and PtLSV is insufficiently emphasized, and the graphical representation on the number line is not adequately explained. These results highlight the need to improve the presentation of PtLSV materials in textbooks and encourage teachers to provide stronger conceptual explanations to foster meaningful learning.
Analisis Penyelesaian Soal Geometri Bidang pada Materi Segitiga Berbasis Konteks Budaya Lokal dalam Pembelajaran Matematika Christania Rossalin Sagala; Aulia Syahputri; Intan Ria Utami Limbong; Yolanda Naomi Sagala; KMA Fauzi
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.47978

Abstract

This study aims to analyze students’ solutions to plane geometry problems on triangle topics presented in a local cultural context in mathematics learning. The research employed a qualitative descriptive approach involving 25 second-semester students of the Mathematics Education Study Program at Universitas Negeri Medan. The research instrument consisted of five essay-type geometry problems based on local cultural contexts designed to encourage higher-order thinking skills. Data were analyzed using Newman’s Error Analysis, which includes reading, comprehension, transformation, process skills, and encoding stages. The findings indicate that the highest percentage of errors occurred at the process skill stage (15%), followed by transformation errors (13.3%). Comprehension and encoding errors each accounted for 11.6%, while no reading errors were identified. These results suggest that students still face difficulties in applying mathematical procedures and translating contextual problems into appropriate mathematical models.
Co-Authors Aulia Syahputri Intan Ria Utami Limbong KMA Fauzi Muhammad Rasyid Mondol Nabila Azuhra Nurul Sakinah Wingston Leonard Sihombing Yolanda Naomi Sagala