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All Journal JTAM (Jurnal Teori dan Aplikasi Matematika) FIBONACCI: Jurnal Pendidikan Matematika dan Matematika Jurnal Ilmiah Pendidikan Matematika Al Qalasadi MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Tirtamath : Jurnal Penelitian dan Pengajaran Matematika
Fadhiliani, Dwi
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Education Mathematics

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Examining The Modelling Skills of Grade 8 Students on The System of Linear Equation in Two Variables through Problem-Based Learning Model Amal, Ikhlasul; Fadhiliani, Dwi; Hasbi, M.
Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Vol 8 No 2 (2024): JURNAL ILMIAH PENDIDIKAN MATEMATIKA AL QALASADI
Publisher : Prodi Pendidikan Matematika, Fakultas Tarbiyah dan Ilmu Keguruan IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/qalasadi.v8i2.8248

Abstract

Mathematical modeling is the process of solving a problem in the real world by simplifying it into mathematical form. Mathematical modeling skills are very useful for students in developing knowledge and deepening their concepts. In learning, this ability is needed in solving contextual problems. However, many students have difficulty in simplifying problems into mathematical models, especially in the material of the Two-Variable Linear Equation System (SPLDV). Applying the Problem Based Learning model is one of the efforts to improve students' mathematical modeling skills. This research uses a quantitative approach and uses a Pre-Experimental Design type of One-Group Pretest-Posttest Design. This study involved all VIII grade students in one of the schools in Aceh Besar. 31 students were selected as samples, and random sampling technique was used. . The instrument in this study was a test question on mathematical modeling ability. Furthermore, one-party t-test was used to analyze the data obtained. The results showed that the Problem Based Learning model improved students' mathematical modeling skills on SPLDV material. It is important for teachers to continue to hone students' modeling skills by getting students used to solving everyday problems using mathematical models so as to improve students' mathematical modeling skills. Improving students' modeling skills is one of the strategies to develop students' mathematical problem solving skills which are the foundation of meaningful learning.
The Role of Interactive e-Modules Based on Realistic Mathematics Education to Improve Mathematical Representation Ability Annisa, Dewi; Khairunnisak, Cut; Fadhiliani, Dwi; Zubaidah, Tuti
MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Vol 7, No 1 (2025): MATHEMA
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jm.v7i1.4844

Abstract

Excellent mathematical representation ability is needed by students to develop and deepen understanding and relationships between mathematical concepts. Therefore, the teacher has the responsibility to create learning that encourages mathematical representation ability. The existence of interactive e-modules with a realistic mathematic education approach makes it easy for students to learn interactively and adapt to different students' mathematical abilities. This study aims to determine the improvement of mathematical representation ability from the use of interactive e-modules with realistic mathematics education approach. This research is a quantitative research conducted on seventh grade students of SMPN 18 Banda Aceh which is divided into experimental and control classes. The data analysis technique used was analysis of variance (ANOVA) followed by t-test. The results showed that students' mathematical representation ability in the experimental class was better than the control class. The interaction between the use of E-modules and students' initial mathematical ability on mathematical representation ability showed that the use of E-modules and early mathematical ability together had a significant effect on improving mathematical representation ability. Students who have high early math ability have a great influence if given treatment in the form of using RME-based e-modules. Students with low early mathematical ability did not experience significant improvement. Interactive e-modules with the RME approach can be used to improve mathematical representation skills by considering students' early mathematical abilities.
Mathematical Modeling of Student Learning Outcomes using E-learning-Based Remedial Programs Fadhiliani, Dwi; Umam, Khairul; Suhartati, Suhartati; Johar, Rahmah
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 9, No 3 (2025): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v9i3.31404

Abstract

Research on mathematical modeling of learning outcomes remains limited, despite its potential to evaluate educational processes and inform placement decisions in schools, classes, learning resources, and remedial programs. This quantitative study aims to construct a mathematical model in the form of an ordinary differential equation (ODE) to represent the dynamics of students’ learning in a remedial program. The model is developed using empirical data obtained from multiple-choice diagnostic tests designed to identify common learning difficulties and a series of three remedial assessments conducted after e-learning-based interventions. The dataset includes students’ assessment scores and time records during the remedial learning process. The Nelder–Mead method was used to estimate the model parameters, followed by a stability analysis and an RMSE-based evaluation of the model’s accuracy. The model captures changes in student understanding over time and reveals that students with lower initial scores tend to show greater improvements through remedial programs. However, as the duration of the remedial program increases, the rate of score improvement decreases—suggesting a decline in student focus and learning efficiency over time. These findings highlight the nonlinear nature of learning progress in remedial program. The model provides for predicting student outcomes and analyzing the effectiveness of remedial programs. It offers practical implications for optimizing the structure and timing of remedial programs and can support the development of adaptive learning systems tailored to student needs. This research demonstrates the potential of mathematical modeling for decision-making in education.  
Efektivitas Pembelajaran Matematika Materi Lingkaran di SMP Menggunakan Strategi Reciprocal Teaching Nur, Fazriati; Anwar, Anwar; Fadhiliani, Dwi
Tirtamath: Jurnal Penelitian dan Pengajaran Matematika Vol 7, No 1 (2025): Tirtamath: Jurnal Penelitian dan Pengajaran Matematika
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48181/tirtamath.v7i1.27435

Abstract

This study aims to determine the effectiveness of the application of reciprocal teaching strategy on circle in class VIII at SMP Negeri 8 Banda Aceh. This research is descriptive quantitative and uses pre-experimental design in the form of one-shot case study. The research sample was students of class VIII-5 SMP Negeri 8 Banda Aceh with a total of 29 students, who were taken by purposive sampling. The results of data analysis were obtained from student response questionnaires, student learning outcomes tests, student activity observations and observations of teacher ability to manage learning. The results of this study showed that (1) the teacher's ability to manage learning in the very good category with an average score of 3.79; (2) student activities during learning took place in a very active category reaching 97.42%; (3) student learning completeness was classically complete reaching a percentage of 86.20%; and (4) student responses in the very good category reached a percentage of 85.11%. Based on the research, it is concluded that the application of reciprocal teaching strategy is effective on circle material in class VIII at SMP Negeri 8 Banda Aceh. Therefore, future research needs to consider revealing students' thinking process in learning.
KEMAMPUAN PENALARAN PROPORSIONAL DITINJAU DARI GAYA KOGNITIF SISTEMATIS DAN INTUITIF SISWA MTSN 2 BANDA ACEH Maidiyah, Erni; Putri, Trisna Isnanda; Fadhiliani, Dwi
FIBONACCI: Jurnal Pendidikan Matematika dan Matematika Vol. 11 No. 1 (2025): FIBONACCI: Jurnal Pendidikan Matematika dan Matematika
Publisher : Fakultas Ilmu Pendidikan Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/fbc.11.1.1-12

Abstract

Research indicated that many students, from primary to secondary levels, still struggled to develop proportional reasoning. Numerous students encountered difficulties in formulating effective problem-solving strategies due to differences in cognitive styles. It was important to assess students' proportional reasoning abilities by considering whether they had systematic or intuitive cognitive styles. This study aimed to determine the proportional reasoning abilities of students with systematic and intuitive cognitive styles. The research was a qualitative descriptive study. The subjects of this study were four students in the seventh grade at MTsN 2 Banda Aceh. Data collection techniques included written tests and interviews. Data analysis was conducted in three stages: data reduction, data presentation, and conclusion drawing. The results show that students with a systematic cognitive style can identify all information and quantities when understanding covariation, whereas students with an intuitive style tend to overlook some important information. Both groups recognise that the problems involve proportional situations and use the cross-multiplication strategy, but neither group can solve the problems using other strategies.
Co-Authors Anwar Anwar Cut Khairunnisak Dewi Annisa, Dewi Erni Maidiyah Ikhlasul Amal Khairul Umam M. Hasbi Nur, Fazriati Putri, Trisna Isnanda Rahmah Johar Suhartati Suhartati Tuti Zubaidah