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All Journal RESLAJ: Religion Education Social Laa Roiba Journal Jurnal Pendidikan dan Sastra Inggris
Jona Mikhael Hutagaol
Universitas Negeri Medan
Religion Economics, Econometrics & Finance Education Environmental Science Social Sciences

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Analisis Kesalahan Mahasiswa dalam Geometri: Studi pada Pemahaman Sudut dalam Garis Sejajar Annisa Saktiono; Agnia Kamila Rambe; Syifani Azzura; Jona Mikhael Hutagaol; Firman Satria Tafonao; Kms. Muhammad Amin Fauzi
Reslaj: Religion Education Social Laa Roiba Journal Vol. 7 No. 5 (2025): RESLAJ: Religion Education Social Laa Roiba Journal
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/reslaj.v7i5.7448

Abstract

This study aims to analyze the types of mistakes made by students in understanding the concept of angles on parallel lines and the factors that cause them. The approach used in this study is qualitative with a descriptive design, which allows the researcher to dig deeply into the pattern of errors that occur. The research subjects consisted of seven students who were selected using the purposive sampling technique based on certain criteria. Data collection is carried out through diagnostic tests that include various types of angles, such as facing angles, opposite inside corners, and unilateral inside angles. The results of the study show that student errors can be classified into four categories according to Soedjadi (in Ananda, dkk 2018), namely factual errors, conceptual errors, principle errors, and operational errors.
Analisis Kesalahan dan Kendala Siswa/i SMA Citra Harapan Percut dalam Menyelesaikan Sistem Persamaan Linear Dua Variabel (SPLDV) serta Solusi Pembelajarannya Kairuddin Kairuddin; Naftali Marbun; Renata Siburian; Jona Mikhael Hutagaol; Artorito Sitorus; Reva Lenita Girsang; Mirna Wulan Sari Sianipar
Jurnal Pendidikan dan Sastra Inggris Vol. 5 No. 3 (2025): Jurnal Pendidikan dan Sastra Inggris
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jupensi.v5i3.6089

Abstract

This study aims to explore in depth the errors and obstacles experienced by students in learning the System of Linear Equations in Two Variables (SLSV), and to provide strategic solutions to improve their understanding and skills. SLSV is a fundamental topic that is very important for developing logical and analytical thinking skills. However, various studies show that students, especially at the vocational high school level, still face significant challenges, particularly when converting story problems into mathematical models, formulating strategies, and being thorough in completing the process. This study applies a qualitative descriptive method involving 25 students from grade X of SMK Swasta Citra Harapan located in Deli Serdang Regency. Primary data were collected through written tests (pre-test and post-test) and interviews with mathematics teachers. The findings of this study indicate that students' initial understanding of SLSV is still minimal, as reflected in the low percentage of correct answers in the pre-test (Problem 1: 32%; Problem 2: 48%). The most frequent errors made by students include the inability to convert story problems into mathematical models, errors in the elimination or substitution process, and errors in algebraic operations. The proposed approach is to implement integrated learning strategies, including Problem-Based Learning (PBL) to reinforce concepts, the use of interactive media to provide motivation, and the habit of systematically recording steps through the Think Talk Write (TTW) approach to improve procedural skills and the accuracy of answers. This study concludes that successful mastery of SPLDV requires a comprehensive strategy that combines conceptual, procedural, and motivational aspects.
Co-Authors Agnia Kamila Rambe Annisa Saktiono Artorito Sitorus Firman Satria Tafonao Kairuddin . Kms. Muhammad Amin Fauzi Mirna Wulan Sari Sianipar Naftali Marbun Renata Siburian Reva Lenita Girsang Syifani Azzura