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All Journal AlphaMath: Journal of Mathematics Education Jurnal Elemen NUMERICAL (Jurnal Matematika dan Pendidikan Matematika) KALAMATIKA Jurnal Pendidikan Matematika Indonesian Journal of Science and Mathematics Education JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Cendekia : Jurnal Pendidikan Matematika MAJU : Jurnal Ilmiah Pendidikan Matematika Range : Jurnal Pendidikan Matematika JUPIKA: JURNAL PENDIDIKAN MATEMATIKA Jurnal Pengabdian Masyarakat (ABDIRA) MATH-EDU: Jurnal Ilmu Pendidikan Matematika Mejuajua Smart Society: Community Service and Empowerment Journal International Journal of Trends in Mathematics Education Research (IJTMER) Media Pendidikan Matematika
Hijriani, Lailin
Department Of Mathematics Education, Universitas Timor, Kefamenanu, 85613
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Nursing Public Health Social Sciences Other

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Pengembangan Lembar Kerja Siswa Materi SPLDV untuk Meningkatkan Hasil Belajar Siswa Melalui Pendekatan Matematika Realistik Deni Taniu; Lailin Hijriani; Yohanes Jefrianus Kehi; Meiva Marthaulina Lestari Siahaan; Fitriani
Media Pendidikan Matematika Vol. 13 No. 2 (2025): J-MPM
Publisher : Program Studi Pendidikan Matematika, FSTT, Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i2.16740

Abstract

This research is motivated by the lack of worksheets development (LKS) at school based on the Realistic Mathematics Approach (RMA), which has resulted in low student mathematical abilities, especially in solving system of linear equations in two variables. This research aims to produce valid, practical, and effective Student Worksheets (LKS) based on the Realistic Mathematics Approach (RMA) for algebra. The research aimed to improve students' mathematical abilities, which will impact student learning outcomes. The research type is research and development (R&D) using the 4-D model. The target population of this study was 20 students of class VIIIA at Junior High School Neonbat. The instruments used were expert validation sheets, student response questionnaire sheets, and pretest and posttest questions. The results of the study showed that the quality of the student worksheets met the validity criteria, with an average value of 84.78% in the very valid category. The results of the LKS practicality questionnaire showed an average score of 90.6% in the very practical category. While in terms of effectiveness, it met the effective criteria. The average individual score for the pretest results was 24.5. However, it increased after using the student worksheet as indicated by the posttest results with an average value of 79.5. The percentage of classical completion based on the posttest results was 80%, which is included in the effective category. So that, the student worksheet for algebra material through realistic mathematics approach met the criteria of valid, practical, and effective.
Analysis of Student Errors in Solving SPLDV Story Problems Based on Visual Learning Styles Maria Fatima Luruk; Lailin Hijriani; Yohanes Jefrianus Kehi
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 3 (2025): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v10i3.10555

Abstract

This study aims to describe the types of errors and the factors that cause students' errors in solving SPLDV story problems from a visual learning style perspective. The type of research used is descriptive qualitative. The research subjects consisted of Class VIII at SMP Negeri 2 Malaka Barat, who were identified as having a visual learning style. The research instruments were essay tests on SPLDV word problems and interview guidelines. Students' errors were analyzed using Kastelan’s theory, which classifies errors into conceptual, procedural, and technical. The results showed that students with visual learning style still made various errors, including (1) conceptual errors, such as inability to construct mathematical models from word problems and misapplying elimination or substitution methods; (2) procedural errors, such as failing to write systematic solving steps and not completing problems until the final stage; (3) technical errors, such as miscalculations and mistakes in copying numbers or variabels. The causes of errors came from internal factors (lack of conceptual understanding, inaccuracy, and difficulty in translating verbal information into symbolic form) and external factors (teaching methods with minimal visualization, an unconducive learning environment, and limited solving time).  
Co-Authors Anas Ma'ruf Annizar Anas Ma'ruf Annizar Annizar, Anas Ma'ruf Bete, Hendrika Cecilia Novianti Salsinha Deda, Yohanis Ndapa Deni Taniu Emily Johnson Farida Daniel Fitriani Fitriani Gusti Firda Khairunnisa Handayani, Rika Khair, Muhammad Sa'duddien Lestari Siahaan, Meiva Marthaulina Maifa, Talisadika Serrisanti Margarita Tampani Maria Brigita Niis Nana Maria Fatima Luruk Mohammad Archi Maulyda mone, ferdinandus Naimnule, Maria Nelciana Talan Qohar, Abd. Rika Handayani Risna Mira Bella Saragih Samuel Seran Selestina Nahak Siahaan, Meiva Marthaulina Lestari Simarmata, Justin Eduardo Stanislaus Amsikan Wua Laja, Yosepha Patricia Yeni Missa Yohanes Jefrianus Kehi Zulkaidah Nur Ahzan