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Identifikasi miskonsepsi siswa dalam menyelesaikan masalah program linier berdasarkan metode Newman ditinjau dari Gender Tyaningsih, Ratna Yulis; Novitasari, Dwi; Salsabila, Nilza Humaira
Griya Journal of Mathematics Education and Application Vol. 5 No. 1 (2025): Maret 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i1.546

Abstract

Misconceptions in solving linear programming problems remain a challenge in mathematics education. Conceptual errors made by students can lead to misunderstandings and suboptimal learning outcomes. This study aims to identify students' misconceptions in solving linear programming problems based on the Newman method and analyze them from a gender perspective. The research method used is qualitative descriptive, with research subjects consisting of high school students who have studied linear programming. Data were collected through a diagnostic test based on the Newman method and in-depth interviews. The Newman method was used to analyze students' errors in five stages: reading, comprehension, transformation, process skills, and writing the final answer. The results showed that misconceptions most frequently occurred in the transformation and process skills stages. Male students tended to make errors in process skills, while female students made more mistakes in the comprehension and transformation stages. The conclusion of this study indicates that gender influences students' misconception patterns in solving linear programming problems. These findings are expected to serve as a reference for educators in designing more effective teaching strategies to reduce misconceptions and improve students' understanding of linear programming.
Empowering elementary teachers: Digital mathematics learning resource training center for enhanced classroom instruction Novitasari, Dwi; Soeprianto, Harry; Kurniati, Nani; Junaidi, Junaidi; Yulis Tyaningsih, Ratna; Agustina, Arianti
Rengganis Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2025): Mei 2025
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v5i1.560

Abstract

The availability and utilization of Mathematics Learning Resource Centers (LRC) play a crucial role in enhancing the quality of teaching in elementary schools. LRC integrated with IT can assist teachers in designing engaging, interactive, and relevant lessons, while also fostering students’ interest in learning. However, field observations reveal that teachers' access to digital learning resources remains limited, and the integration of technology in mathematics instruction is still suboptimal. To address this issue, the program provided training for elementary school teachers on effectively utilizing digital-based learning resource centers. The main objective in this community service is to improve teachers' skills in using LRC as a supportive medium for mathematics instruction in the classroom. The training was conducted through discussions, demonstrations, and hands-on simulations, involving 18 elementary school teachers from Puyung. Evaluation results, obtained through questionnaires, indicate that participants (1) showed high enthusiasm throughout the training, (2) were able to operate the digital LRC independently, and (3) responded positively to the usefulness of LRC in supporting the teaching and learning process. It is expected that this training will broaden teachers’ knowledge and skills in utilizing technology,and contribute to the improvement of mathematics teaching quality at the elementary school level.
Studi Implementasi GeoGebra dan Blok Manipulatif sebagai Representasi Visual dan Konkret dalam Pembelajaran Pecahan Tyaningsih, Ratna Yulis; Salsabila, Nilza Humaira; Triutami, Tabita Wahyu
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9498

Abstract

Difficulties in understanding fraction concepts remain a significant challenge for elementary school students, primarily due to limitations in connecting abstract ideas with concrete experiences. This study aims to examine the implementation of GeoGebra and manipulatives blocks as visual and concrete representations in teaching fractions at SD Negeri 35 Ampenan. Employing a case study approach, the research involved 25 fourth-grade students as participants. Data were collected through observations, written tests, in-depth interviews, and documentation. The findings reveal: (1) an improvement in learning outcomes, indicated by an increase in average test scores from 72.2 (using manipulatives blocks) to 78.4 (using GeoGebra), representing an 8.6% gain; and (2) interviews with three students of varying ability levels suggested that concrete media (manipulatives blocks) were more effective for students with lower mathematical ability, while GeoGebra was preferred by students with stronger visual and conceptual skills. These findings suggest that the use of multiple representations can bridge understanding gaps and provide a more adaptive learning experience, particularly in teaching fractions. The study recommends integrating both visual and concrete media into mathematics instruction to enhance instructional effectiveness and strengthen student engagement.
Transformasi Pembelajaran Matematika Berbasis Problem Based Learning (PBL) untuk Menurunkan Mathematics Anxiety Siswa Tyaningsih, Ratna Yulis; Junaidi, Junaidi; Lu'luilmaknun, Ulfa
Griya Journal of Mathematics Education and Application Vol. 5 No. 2 (2025): Juni 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i2.713

Abstract

Mathematics anxiety is a psychological barrier that can hinder students’ academic achievement, particularly in mathematics learning. This anxiety disrupts concentration, reduces self-confidence, and often leads to low learning outcomes. This study aimed to examine the effectiveness of the Problem Based Learning (PBL) approach in reducing mathematics anxiety among seventh-grade students on the topic of Social Arithmetic. A quasi-experimental method with a pre-intervention and post-intervention control group design was employed. The research subjects consisted of seventh-grade students at SMPN 20 Mataram, selected through purposive random sampling. The instrument used was a modified Mathematics Anxiety Rating Scale (MARS) adapted for junior high school context. Data were analyzed using normality and homogeneity tests, independent sample t-test, and N-Gain score calculation. The results indicated that students who received PBL-based instruction experienced a significantly greater reduction in mathematics anxiety than those who received conventional instruction, as shown by the t-test result (p = 0.000 < 0.05). Furthermore, the experimental group achieved an N-Gain score of 0.65, categorized as moderate, suggesting that the PBL approach substantially enhanced the reduction of mathematics anxiety. These findings affirm that PBL not only improves students’ understanding of Social Arithmetic but also has a positive impact on their affective learning domain. The implication of this study emphasizes the importance of transforming mathematics instruction toward more contextual, collaborative, and student-centered approaches to create more comfortable and meaningful learning experiences.
ChatGPT sebagai Asisten Pemrograman: Studi Deskriptif pada Mahasiswa Pendidikan Matematika dalam Pembelajaran MATLAB Salsabila, Nilza Humaira; Wulandari, Nourma Pramestie; Tyaningsih, Ratna Yulis
Griya Journal of Mathematics Education and Application Vol. 5 No. 2 (2025): Juni 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i2.722

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Penelitian ini bertujuan untuk mengetahui pengalaman mahasiswa pendidikan matematika dalam menggunakan ChatGPT sebagai alat bantu dalam menyusun program MATLAB pada pembelajaran Komputer Matematika. Penelitian ini menggunakan pendekatan deskriptif kualitatif dengan melibatkan empat mahasiswa yang bekerja dalam dua kelompok kecil. Data dikumpulkan melalui lembar aktivitas yang berisi tugas membuat tiga program MATLAB dengan bantuan ChatGPT dan pertanyaan refleksi tentang pemahaman, tantangan, dan kepercayaan diri mereka. Hasil penelitian menunjukkan bahwa ChatGPT membantu mahasiswa memahami struktur program, mempercepat proses penulisan kode, dan meningkatkan rasa percaya diri dalam belajar pemrograman. Mahasiswa juga menyadari bahwa tidak semua jawaban dari ChatGPT langsung sesuai, sehingga perlu tetap berpikir kritis dan memeriksa kembali setiap kode. Secara umum, ChatGPT dinilai bermanfaat dalam proses belajar pemrograman, terutama jika digunakan bersama pemahaman konsep yang baik. Penelitian selanjutnya disarankan untuk melibatkan lebih banyak peserta dan menerapkan ChatGPT pada topik matematika lain.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBANTUAN KOMPUTER PADA MATERI GEOMETRI RUANG BERBASIS VAN HIELE LEVELS UNTUK SISWA SMA KELAS X SEMESTER 2 Tyaningsih, Ratna Yulis
Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika Vol 1 No 2 (2015)
Publisher : Program Studi Pendidikan Matematika, Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2791.471 KB) | DOI: 10.29407/jmen.v1i2.236

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Materi Geometri Ruang menuntut adanya kemampuan visualisasi dan analisis yangtinggi sehingga diperlukan suatu media yang mendukung aktivitas visual siswa. Pengadaanmedia Pembelajaran Berbantuan Komputer (PBK) merupakan salah satu usaha untukmeningkatkan pemahaman konsep tentang materi jarak dan memotivasi siswa untuk belajarmateri jarak pada bangun ruang secara lebih mudah.Media ini berisi materi jarak pada kubusyang ditujukan untuk siswa SMA Kelas X. Media ini berbasis Van Hiele Levels yang terdiri dari5 tahapan yaitu tahap visualisasi, analisis, abstraksi, deduksi, dan rigor. Tetapi untuk tahapRigor tidak digunakan dalam media ini. Media ini diujicobakan ke SMA Negeri 1 Grogol Kediridengan mengambil 9 siswa yang terdiri dari 3 siswa berkemampuan baik, 3 siswaberkemampuan sedang, dan 3 siswa berkemampuan kurang. Hasil penelitian inimenunjukkan ≥ 80% dari seluruh siswa yang menjadi subjek uji coba memenuhi ketuntasanbelajar yaitu ≥ KKM (Kompetensi Ketuntasan Minimal) yang telah ditentukan sekolahtersebut dan hasil angket siswa menunjukkan bahwa media ini efektif dengan tingkatkeefektifan ≥ 70%.Tipe media yang dikembangkan adalah tipe tutorial terprogram dansimulasi. Media ini terdiri dari 4 bagian utama yaitu pengantar, materi, contoh, dan soal.Produk akhir media ini dikemas dalam bentuk CD Autorun sehingga dapat digunakan secaraumum oleh guru dan siswa di sekolah atau secara mandiri oleh siswa di rumah.Berdasarkanpengembangan media ini, disarankan agar dilakukan pengembangan media pembelajaranberbantuan komputer untuk materi jarak atau materi-materi lain yang lebih interaktif,inovatif, dan berbasis dimensi tiga (3D Visual). Media ini juga dapat dijadikan sebagaiinspirasi untuk melakukan pengkajian dan pengembangan yang lebih lanjut sehinggadiperoleh media sejenis yang lebih baik.  Kata Kunci: PBK, media, geometri ruang, Van Hiele Levels, kelas X SMA
Analysis of Students' Mathematical Communication in Drawing Graphs of Multivariable Functions Tyaningsih, Ratna Yulis; Arjudin, Arjudin; Hikmah, Nurul
Indonesian Journal of Science and Mathematics Education Vol. 3 No. 3 (2020): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v3i3.7354

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Mathematical communication competencies help students to convey mathematical ideas orally and in writing. The purpose of this study was to analyze students' communication skills in drawing graphs of multivariable functions in advanced calculus courses. This type of research is qualitative with descriptive methods. The subjects in this study were 28 students of Mathematics Education class 4B. This study used a stratified random sampling technique to obtain 3 students consisting of high, medium, and low mathematics competencies. The data collection instruments used were the competency mapping test, evaluation test, and interview guidelines. The results of this study are (1) students with high competence excel at writing and making mathematical models, (2) students with moderate competence have advantages in three stages, but there are few errors in applying the agreement, (3) students with low competence make mistakes at the third stage due to wrong in formulating problems and designing problem-solving strategies.
Mathematical Communication Skills in Solving Limit and Continuity Problems: Reviewed from Intra-and-Interpersonal Intelligence Tyaningsih, Ratna Yulis; Arjudin, Arjudin; Salsabila, Nilza Humaira
Indonesian Journal of Science and Mathematics Education Vol. 5 No. 1 (2022): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v5i1.10680

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The various intelligence of students allows for differences in the mathematical communication skills produced. This study aimed to analyze students’ mathematical communication skills in terms of intrapersonal and interpersonal intelligence. The subjects of this study were students of Mathematics Education Class IV at the University of Mataram. This research method is descriptive with a survey design. This study uses a qualitative approach with stages covering problem formulation, sample selection, research limitations, instrumentation in the form of questionnaires and tests, data collection and analysis, and conclusion. The results of this study indicate that the level of intrapersonal and interpersonal intelligence affects students’ mathematical communication skills. This can provide information to educators to provide appropriate services.
Pengembangan Media Komik Etnomatematika pada Alat Musik Sasak untuk Meningkatkan Hasil Belajar Siswa di SMPN 1 Lingsar Azzahra, Sakinah; Turmuzi, Muhammad; Tyaningsih, Ratna Yulis
Griya Journal of Mathematics Education and Application Vol. 5 No. 3 (2025): September 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i3.736

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The abstract nature of mathematics often makes students feel challenged, bored, and even anxious during the learning process. Therefore, mathematics learning should be interactive, enjoyable, and motivating. This study aimed to develop ethnomathematics-based comic learning media that connects the concept of cylindrical solid geometry with the traditional Sasak musical instrument Gendang Beleq to improve the mathematics learning outcomes of 29 seventh-grade students at SMPN 1 Lingsar, consisting of 10 male and 19 female students. The research employed a Research and Development (R&D) method using the 4D model (Define, Design, Develop, Disseminate), but was limited to the Develop stage. Research instruments included validation sheets, practicality questionnaires, and learning achievement tests. The analysis focused on the validity, practicality, and effectiveness of the media. The results indicated that the developed comic media was categorized as “highly valid” with an average percentage of 81.73%, “highly practical” with an average percentage of 92.65%, and “effective” with an N-Gain score of 0.73 (high category). Furthermore, this media successfully increased students’ learning interest, reinforced contextual conceptual understanding, and fostered an appreciation of local culture. The visual and narrative presentation of the comic made the learning process more enjoyable and meaningful.
Pengaruh Penerapan Model Kooperatif Student Facilitator And Explaining (SFE) Dengan Media LKPD Terhadap Kemampuan Representasi Matematis Siswa Fuji Rastuti, Hesti; Baidowi, Baidowi; Tyaningsih, Ratna Yulis
Mandalika Mathematics and Educations Journal Vol 7 No 3 (2025): Edisi September
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i3.9690

Abstract

This study aims to determine whether the mathematical representation ability of students taught using the Student Facilitator and Explaining (SFE) learning model with LKPD media is better than that of students taught using the direct instruction model at SMPN 7 Mataram. The research method used is a quasi-experimental design with a posttest-only control group design. The population consisted of eighth-grade students at SMPN 7 Mataram, with the sample comprising 42 students from class VIII-J as the experimental group and 42 students from class VIII-I as the control group, selected through purposive sampling. The experimental class was taught using the SFE learning model, while the control class received direct instruction. Data were collected through a mathematical representation ability test. The results of the t-test showed that ​, namely 7.04002 > 1.664, indicating that  was accepted. This means that the average mathematical representation ability of the experimental class was higher than that of the control class. Based on these results, it can be concluded that students who received instruction using the SFE model had better mathematical representation abilities compared to those who received direct instruction.