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Syifa Eriza Nasution
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Analisis Miskonsepsi Nilai π pada Materi Lingkaran dalam Buku Senang Belajar Matematika: Antara Nilai Sebenarnya dan Realitas Irasional Syifa Eriza Nasution; Joyce Lidya Patricia Daeli; Pujiono Sihite; Marcelly Claudia Sagala; Immanuel Simbolon; 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.v10i03.33148

Abstract

Understanding mathematical concepts is inseparable from the clarity of their definitions and presentation in textbooks. One fundamental concept that frequently appears in school curricula, from elementary, middle, and high school levels, is the constant π (phi) in the topic of circles. Mathematically, π is an irrational number obtained from the ratio of a circle's circumference to its diameter. However, in practical learning, the value of π is often simplified to or 3.14. This practical presentation has the potential to lead to misconceptions in students, namely, that they assume π is a rational number. This study used qualitative methods with document analysis techniques in the "Happy Learning Mathematics" book. The results of the analysis indicate an emphasis on the use of the value π = or 3.14 without explaining its irrational nature. As a result, students tend to memorize practical formulas and numbers without understanding that these two values are only approximations and that π is an irrational number with infinite decimal places.
Analisis Scaffolding dan Visualisasi dalam Penyajian Materi Vektor 3D pada Modul Matematika Peminatan kelas X KD 3.2 Suwanto; Adam Rafli; Indah Ayu Ramadany; Nabila Azuhra; Nofa Nasywa Ramadhani; Syifa Eriza Nasution; Mukhtar
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 04 (2025): Volume 10 No. 04 Desember 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.v10i04.36839

Abstract

This research was conducted to assess the quality of Scaffolding and visualization in the presentation of the Mathematics Module material for Grade X KD 3.2 regarding 3D vector material. The approach used in this research is a qualitative descriptive approach, which is carried out by analyzing the structure of the material, illustrations, example questions, and exercises provided in the module using content analysis techniques. The focus of the analysis conducted leads to several main aspects, including: (1) The sequence and form of Scaffolding presented as support in understanding the concept gradually, and (2) The effectiveness of visualization to help define and organize spatial vector data in space. This research resulted in a finding that the module has used Scaffolding with a tiered presentation of concepts, starting from the initial stage, namely the introduction of vector material in space to the stage of applying operations on vectors. However, on the other hand, it was also found that there are several stages of this Scaffolding that are not consistent, namely in the transition from examples to exercises which require a higher level of independence. Based on the visualization, the module utilizes spatial coordinate diagrams and vector arrow representations. However, some visuals lack detail in depicting orientation and depth in space, potentially leading to misconceptions among students. Overall, the module provides sufficient support for learning, but further strengthening of conceptual visualizations and more systematic Scaffolding is needed to optimally facilitate students' spatial thinking.
Co-Authors Adam Rafli Immanuel Simbolon Indah Ayu Ramadany Joyce Lidya Patricia Daeli Marcelly Claudia Sagala Mukhtar Nabila Azuhra Nofa Nasywa Ramadhani Pujiono Sihite Suwanto Wingston Leonard Sihombing