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All Journal Wacana Akademika : Majalah Ilmiah Kependidikan Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika
Purba, Diva Novita Angely Putri
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Decision Sciences, Operations Research & Management Education Mathematics

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PENGARUH AUGMENTED REALITY TERHADAP PEMAHAMAN KONSEP BARISAN PADA MAHASISWA Lubis, Ariyanto; Purba, Diva Novita Angely Putri; Simangunsong, Erika; Simanullang, Michael Christian
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 6 No. 1 (2025): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v6i1.925

Abstract

Technological advances in education have brought significant changes in learning methods, including the use of Augmented Reality (AR) as an interactive media to improve students' understanding of the concept of rows. This study aims to analyze the effect of using AR on the understanding of the concept of sequence in the Real Analysis course, especially in the aspects of sequence limit, sequence tail, and sequence operation. The approach used in this research is qualitative with descriptive analysis method, where the data is collected through tests given to three students who are the research subjects. Augmented reality developed in this study visualizes the concept of limit of a line by displaying points that are getting closer to the x-axis, as well as adding elements of the tail of the line to test students' understanding of the part of a line. The results showed variations in students' level of understanding of each concept tested, and revealed some conceptual errors that occurred during the testing process. The discussion in this study highlights the effectiveness of AR in facilitating student understanding, as well as identifying factors that influence success in understanding the concept of rows in more depth.
Analisis Kesalahan Siswa Kelas XI dalam Memecahkan Soal Cerita SPLTV Berdasarkan Kriteria Watson Purba, Diva Novita Angely Putri; Purba, Derma Sarah Tia Wanka; Nasution, Helina Qatrunnada; Rahmah, Khalida; Syafitri, Nazwa Mutia; Siregar, Budi Halomoan
Wacana Akademika: Majalah Ilmiah Kependidikan Vol 9 No 2 (2025): November 2025 (In Progress)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/wacanaakademika.v9i2.20932

Abstract

This study aims to analyze the types of errors made by 11th-grade students in solving story problems involving systems of linear equations in three variables (SPLTV) using Watson’s error analysis framework. The research employed a qualitative descriptive method with 31 students from SMA Negeri 5 Medan as participants. Data were collected through written tests consisting of SPLTV story problems, teacher interviews to determine the research class, and classroom observations to support findings on students’ problem-solving processes. The data were analyzed based on Watson’s eight error categories. The findings revealed that the most frequent errors were the use of inappropriate procedures, omission of essential data, absence of final conclusions, and leaving answers blank. The main contributing factors included limited understanding of SPLTV concepts, weak algebraic skills, carelessness, and inconsistency in solving problems. These findings suggest the importance of enhancing conceptual understanding and procedural accuracy through effective learning strategies.
Co-Authors Budi Halomoan Siregar Lubis, Ariyanto Michael Christian Simanullang Nasution, Helina Qatrunnada Purba, Derma Sarah Tia Wanka Rahmah, Khalida Simangunsong, Erika Syafitri, Nazwa Mutia