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All Journal Jurnal Wawasan Ilmiah SIGMA: Jurnal Pendidikan Matematika Math Didactic: Jurnal Pendidikan Matematika Imajiner: Jurnal Matematika dan Pendidikan Matematika GAUSS: Jurnal Pendidikan Matematika Jurnal Padegogik Pekemas IPI Garut Mosharafa: Jurnal Pendidikan Matematika Plusminus: Jurnal Pendidikan Matematika Kognitif: Jurnal Riset HOTS Pendidikan Matematika Pedagogy : Jurnal Pendidikan Matematika Jurnal Inovasi Pembelajaran Matematika: PowerMathEdu (PME) Indonesian Journal of Community Empowerment Indonesian Journal of Mathematics Education
Rostina Sundayana
Institut Pendidikan Indonesia
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Library & Information Science Mathematics Social Sciences Other

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Training of Realistic Mathematics Education Learning Approach in Salawu Village Afriansyah, Ekasatya Aldila; Nuraeni, Reni; Puspitasari, Nitta; Sundayana, Rostina; Jejen, Jejen; Sumia, Sumia; Damayanti, Desi; Lesmana, Andi
Indonesian Journal of Community Empowerment (IJCE) Vol 4 No 01 (2023): Indonesian Journal of Community Empowerment (February)
Publisher : Fakultas Kewirausahaan Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35899/ijce.v4i01.701

Abstract

This training activity is part of the service program of the lecturers of the Indonesian Education Institute. Salawu Village is a destination for IPI Garut mathematics education teachers according to the needs in the field of education in the knowledge of new learning innovations. We offer Indonesian Realistic Mathematics Education (PMRI) as learning that can be applied in schools around Salawu, especially elementary school. The purpose of this service is to provide training to teachers in Salawu village about PMRI. The service method used is the method of community education, consultation, and training that involves demonstrations. Data on community service activities including photos of activities, answers to questionnaires and questions by participants. The number of participants who attended 25 people consisting of elementary school teachers and prospective PLP student candidates for teacher candidates in Salawu village. The result of this training is PMRI which can be well translated and can be applied by the teacher in his class immediately.
Training to Submit Scientific Articles in Accredited National Journals Afriansyah, Ekasatya Aldila; Luritawaty, Irena Puji; Puspitasari, Nitta; Sundayana, Rostina; Mulyadi, Redi; Hidayat, Asep; latifah, Yusi; Damayanti, Desi
Indonesian Journal of Community Empowerment (IJCE) Vol 4 No 01 (2023): Indonesian Journal of Community Empowerment (February)
Publisher : Fakultas Kewirausahaan Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35899/ijce.v4i01.702

Abstract

The teacher's ignorance of the publication of journal articles became the starting point for the problems to be solved so it became the theme raised in this training. The solution provided through this training is material and guidance from the presenters to all participants. The purpose of this training activity is to provide information about articles and journals, as well as the process of submitting articles to accredited national journals, as well as the scope of it to MTs teachers in Garut Regency in particular, and generally to all other participants. The training method used has five stages, including introduction, socialization, training, practice, and monitoring. The subjects of this training are all teachers who are collected in the MGMP MTs Garut Regency, as well as other participants who work as teachers, lecturers, or students on a national scale. The training activities were carried out in two sessions, including material presentation and practical skills. The results of the evaluation form regarding this training activity were very good, all questions received positive responses and answers from all participants. It seems that several teachers have committed to follow up this training activity by trying to write their findings in the form of articles and publish them in the designated accredited national journals. This training concludes that the insights and knowledge conveyed by the presenters in this training activity can open the eyes of all teachers to aspects of scientific publications that so far have never even been glimpsed by teachers.
Training on Problem-Solving Learning Strategies for Special Education Teachers in Teaching Mathematics to People with Dyscalculia in Kab. Garut Sundayana, Rostina; Afriansyah, Ekasatya Aldila; Maryati, Iyam; Puspitasari, Nitta; Sumiarelati, Sumia; Hadiansyah, Nirwan
Indonesian Journal of Community Empowerment (IJCE) Vol 4 No 01 (2023): Indonesian Journal of Community Empowerment (February)
Publisher : Fakultas Kewirausahaan Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35899/ijce.v4i01.703

Abstract

Although the implementation of the National Assessment policy has been running for one year, it is suspected that the understanding of teachers, parents and students about the National Assessment is not sufficient. The results of the situation analysis on the understanding of teachers at PLB teachers Kab Garut regarding minimum competency assessments show that (1) teachers' understanding of AN is still low and (2) the ability of teachers to prepare problem solving-based questions is still low. The solution agreed upon with partners is to optimize learning by training and assisting teachers in developing problem solving questions. The target audience is 16 teachers at Guru PLB Kab Garut. The method of implementing the activity is the participatory rural appraisal model, the technology transfer model, and training. The results of the activity show that there has been an increase in teachers' understanding of the problem solving questions with an average score of 76. A total of 62.5% of the training teachers have also succeeded in developing their own problem solving questions in accordance with the guidelines.
HUBUNGAN ANTARA SELF-EFFICACY DENGAN KEMAMPUAN REPRESENTASI MATEMATIS DALAM PEMBELAJARAN MATEMATIKA Elfania Kartini; Sundayana, Rostina
Pedagogy: Jurnal Pendidikan Matematika Vol. 10 No. 3 (2025): Pedagogy : Jurnal Pendidikan Matematika
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/pedagogy.v10i3.6832

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya kemampuan siswa dalam merepresentasikan ide-ide matematis yang diduga berkaitan dengan tingkat self-efficacy mereka. Tujuan dari penelitian ini adalah untuk mengkaji hubungan antara self-efficacy dengan kemampuan representasi matematis siswa. Pendekatan yang digunakan adalah kuantitatif dengan desain korelasional. Penelitian ini melibatkan populasi seluruh siswa kelas XI SMA Muhammadiyah Banyuresmi Garut, dengan sampel yang diambil secara purposive yaitu kelas XI IPS 1 sebanyak 26 siswa. Data dikumpulkan melalui penyebaran angket self-efficacy dan tes tertulis kemampuan representasi matematis. Analisis data dilakukan dengan menggunakan uji korelasi Spearman. Hasil analisis menunjukkan adanya hubungan positif dan signifikan antara self-efficacy dengan kemampuan representasi matematis siswa dengan nilai koefisien sebesar 0,543. Artinya, semakin tinggi self-efficacy siswa, maka cenderung semakin tinggi pula kemampuan representasi matematisnya.
Interactive Multimedia in Differentiated Learning: Improving Students' Mathematical Representation and Confidence Kartina, Tina; Sundayana, Rostina; Puspitasari, Nitta
Indonesian Journal of Mathematics Education Vol. 8 No. 2 (2025): Indonesian Journal of Mathematics Education (In Press)
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijome.v8i2.2936

Abstract

This study investigates the role of interactive multimedia in differentiated learning to enhance students’ comprehension, mathematical representation, and self-confidence, while accounting for their diverse learning styles. The research involved 97 eighth-grade students at a public junior high school at Garut Regency, Indonesia, divided into four classes. A quantitative approach with a quasi-experimental design was employed, grouping students homogeneously and heterogeneously based on visual, auditory, and kinesthetic learning styles. Data were collected using mathematical comprehension and representation tests, as well as a self-confidence questionnaire. The results show improvements in mathematical comprehension by 17.59 points in homogeneous group and 16.86 points in heterogeneous group, and increases in representation ability by 13.08 and 12.41 points, respectively. Students’ self-confidence also increased in both groups, with a difference of 0.169 points. These findings indicate that interactive multimedia integrated into differentiated learning significantly enhances students’ cognitive and affective outcomes. In conclusion, multimedia aligned with students’ learning styles fosters an inclusive and adaptive learning environment, supports differentiated instruction, and strengthens students’ conceptual understanding and confidence.
ANALISIS KESALAHAN MATEMATIS SISWA SMA BERDASARKAN PENDEKATAN NEWMAN’S ERROR ANALYSIS (NEA) PADA MATERI PELUANG Salam, Mutiara; Sundayana, Rostina
Pedagogy: Jurnal Pendidikan Matematika Vol. 10 No. 4 (2025): Pedagogy : Jurnal Pendidikan Matematika
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/pedagogy.v10i4.7649

Abstract

Penelitian ini bertujuan untuk menganalisis kesalahan matematis siswa SMA dalam menyelesaikan soal materi peluang berdasarkan pendekatan Newman's Error Analysis (NEA). NEA membagi proses penyelesaian soal menjadi lima tahap: membaca soal (reading), memahami makna (comprehension), mentransformasikan ke model matematika (transformation), melakukan perhitungan (process skill), dan menuliskan hasil akhir (encoding). Metode penelitian menggunakan pendekatan deskriptif kualitatif dengan subjek 28 siswa kelas XII SMAN 16 Garut yang dipilih melalui purposive sampling. Data dikumpulkan melalui tes tertulis berupa lima soal uraian pada materi peluang, wawancara, dan dokumentasi lembar jawaban. Hasil analisis menunjukkan bahwa kesalahan paling dominan terjadi pada tahap transformation (39%) yang menunjukkan bahwa banyak siswa mengalami hambatan dalam mengubah soal cerita menjadi model matematika, termasuk menentukan ruang sampel dan jenis peristiwa. Pada tahap process skill (35%) siswa masih salah dalam melakukan proses perhitungan seperti kombinasi dan permutasi. Pada tahap comprehension (15%) sebagian siswa masih mengalami kesulitan memahami konteks dan informasi penting yang diminta dalam soal. Pada tahap encoding (10%) siswa masih menulis penyajian jawaban akhir yang tidak lengkap atau kurang tepat. Pada tahap reading (1%) menunjukkan bahwa hampir semua siswa mampu membaca dan mengenali informasi dasar pada soal. Temuan ini menyimpulkan bahwa kesulitan utama siswa dalam materi Peluang bukan pada pemahaman informasi dasar, melainkan pada kemampuan mentransformasikan soal ke model matematika dan proses perhitungan. Dengan begitu, rekomendasi untuk pembelajaran ditekankan pada penguatan konsep istilah peluang, visualisasi model matematis, dan pemberian scaffolding untuk meningkatkan akurasi proses perhitungan.
Relationship between Algebraic Thinking Ability and Student’s Mathematical Resilience Rahma, Nazwa Aulia; Sundayana, Rostina
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 4 (2025): October - December 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i4.3908

Abstract

Algebraic thinking ability and mathematical resilience are two essential elements that support each other in the mathematics learning process. This study aims to determine the relationship between students' algebraic thinking ability and their mathematical resilience. A quantitative correlational method with a cross-sectional design was employed. The population included all seventh-grade students at MTs Al-Musthofa Garut, with a sample of 30 students selected through purposive sampling. Research instruments consisted of an algebraic thinking ability test based on Lew (2004) indicators and a mathematical resilience questionnaire based on Sumarmo (2015) indicators. The validity of both instruments was verified through content and face validity by expert judgment from mathematics teachers, while reliability was calculated using Cronbach’s Alpha coefficients, yielding coefficient reliability 0.700 for the algebraic thinking test and coefficient reliability  0.832 for the mathematical resilience questionnaire. Data were collected in a single classroom session and analyzed using Spearman's correlation as the data were not normally distributed. The results showed a positive and significant relationship between algebraic thinking ability and mathematical resilience, with a correlation coefficient of 0.571 and a significance value of 0.001. These findings indicate that a higher level of algebraic thinking ability corresponds to a higher level of mathematical resilience. Practically, this study confirms that strengthening algebraic thinking skills through gradual and systematic practice can be an effective strategy to enhance students' resilience in learning mathematics.
Hubungan Self-efficacy dan Kemampuan Representasi Matematis Siswa dalam Menyelesaikan Soal Open-Ended Firmawatie, Ai Ahnae; Sumartini, Tina Sri; Sundayana, Rostina
GAUSS: Jurnal Pendidikan Matematika Vol. 8 No. 2 (2025)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/gauss.v8i2.11747

Abstract

Penelitian ini bertujuan untuk mengetahui sejauh mana hubungan antara self-efficacy dan kemampuan representasi matematis siswa dalam menyelesaikan soal open-ended. Jenis penelitian ini adalah penelitian kuantitatif dengan correlational design. Populasi dan sampel penelitian ini siswa kelas XI-12 SMAN 19 Garut sebanyak 28 orang. Teknik pengambilan sampel menggunakan sampling jenuh. Instrumen yang digunakan adalah lembar angket dan tes. Berdasarkan hasil uji statistik yaitu uji Rank-Spearman didapat nilai signifikansi sebesar 0,036 < 0,05 yang artinya terdapat hubungan yang signifikan antara self-efficacy dan kemampuan representasi matematis siswa dalam soal open-ended dengan koefisen korelasi sebesar 0,397 yang menunjukkan korelasi yang cukup lemah. Hasil ini dipengaruhi beberapa faktor diantaranya: (1) Kemampuan representasi matematis juga bergantung pada penguasaan konsep dan pengalaman belajar sebelumnya. (2) self-efficacy saja tidak cukup untuk menjamin kemampuan representasi, dibutuhkan pula keterampilan metakognitif dan strategi pemecahan masalah. (3) Dukungan guru bisa mengoptimalkan kontribusi self-efficacy terhadap kemampuan representasi matematis siswa dalam menyelesaikan soal open-ended.
Analisis Resiliensi Matematis Siswa SMA dalam Pembelajaran Matematika Yohana, Anggraeni Yayu; Afriansyah, Ekasatya Aldila; Sundayana, Rostina
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 8, No 1 (2026): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v8i1.26242

Abstract

Penelitian ini bertujuan untuk mendeskripsikan resiliensi matematis siswa Sekolah Menengah Atas (SMA) dalam pembelajaran matematika. Penelitian menggunakan pendekatan kualitatif deskriptif dengan subjek sebanyak 33 siswa di SMAN 2 Garut Tahun Ajaran 2024/2025 yang dipilih melalui teknik purposive sampling. Pengumpulan data dilakukan menggunakan angket resiliensi matematis berbasis skala Likert yang memuat empat indikator, yaitu keyakinan terhadap matematika, kemauan dan kegigihan, keyakinan pada diri sendiri, serta sikap bertahan dan pantang menyerah, yang dilengkapi dengan wawancara terhadap beberapa siswa terpilih. Analisis data dilakukan dengan menghitung persentase tiap indikator dan menginterpretasikannya berdasarkan kategori tingkat resiliensi matematis siswa. Hasil penelitian menunjukkan bahwa resiliensi matematis siswa secara keseluruhan termasuk dalam kategori kuat dengan persentase rata-rata sebesar 79%. Indikator keyakinan terhadap matematika memperoleh persentase tertinggi dengan kategori sangat kuat, sedangkan indikator keyakinan pada diri sendiri menunjukkan persentase terendah meskipun tetap termasuk dalam kategori kuat. Temuan ini menunjukkan bahwa siswa umumnya memiliki sikap positif, kegigihan, serta kemampuan bertahan dalam menghadapi kesulitan belajar matematika. Oleh karena itu, penguatan aspek afektif, khususnya kepercayaan diri siswa, perlu terus dikembangkan melalui strategi pembelajaran yang mendukung dan responsif terhadap kebutuhan siswa.
Analisis Motivasi Belajar Matematika Siswa SMK di Tinjau dari  Gender Gani Arrijal, Ahmad; Sundayana, Rostina
GAUSS: Jurnal Pendidikan Matematika Vol. 8 No. 2 (2025)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/4n4ywz79

Abstract

Abstrak Motivasi belajar merupakan faktor penting yang memengaruhi keberhasilan siswa dalam pembelajaran matematika, khususnya pada jenjang Sekolah Menengah Kejuruan (SMK). Penelitian ini bertujuan untuk mendeskripsikan motivasi belajar matematika siswa SMK ditinjau dari gender. Penelitian menggunakan pendekatan deskriptif dengan dukungan data kualitatif. Subjek penelitian terdiri atas 20 siswa kelas XI Akuntansi di salah satu SMK di Kabupaten Garut, yang terdiri dari 10 siswa laki-laki dan 10 siswa perempuan. Data dikumpulkan melalui angket motivasi belajar matematika yang disusun berdasarkan lima indikator, yaitu minat terhadap mata pelajaran, ketekunan dalam belajar, usaha untuk berprestasi, kebutuhan untuk berhasil, dan pengaruh lingkungan sosial, serta wawancara sebagai data pendukung. Data angket dianalisis menggunakan teknik persentase, sedangkan data wawancara dianalisis secara tematik. Hasil penelitian menunjukkan bahwa motivasi belajar matematika siswa laki-laki dan perempuan berada pada kategori kuat pada seluruh indikator. Namun demikian, terdapat perbedaan kecenderungan, di mana siswa laki-laki lebih dominan pada aspek minat, ketekunan, kebutuhan untuk berhasil, dan pengaruh lingkungan sosial, sedangkan siswa perempuan lebih menonjol pada aspek usaha untuk berprestasi. Temuan ini menunjukkan bahwa motivasi belajar matematika dipengaruhi oleh karakteristik gender yang berbeda. Kata kunci: Motivasi Belajar, Matematika, Gender, Siswa SMK Abstract Learning motivation is a crucial factor influencing student success in mathematics, particularly at the Vocational High School (SMK) level. This study aims to describe vocational high school students' mathematics learning motivation from a gender perspective. The study employed a descriptive approach supported by qualitative data. The subjects were 20 11th-grade Accounting students at a vocational high school in Garut Regency, comprising 10 boys and 10 girls. Data were collected through a mathematics learning motivation questionnaire structured around five indicators: interest in the subject, persistence in learning, striving for achievement, need for success, and social influence. Interviews served as supporting data. The questionnaire data were analyzed using percentage analysis, while the interview data were analyzed thematically. The results showed that both male and female students' mathematics learning motivation was strong across all indicators. However, there were differences in tendencies, with male students being more dominant in the aspects of interest, persistence, need for success, and social influence, while female students were more prominent in the aspect of striving for achievement. These findings suggest that mathematics learning motivation is influenced by different gender characteristics.  Keywords: Learning Motivation, Mathematics, Gender, Vocational High School Students  
Co-Authors Afriansyah, Eka Aldila Agah Nugraha Al-Siyam, Egi Al-Siyam, Egi Ali Usman, Ali Amirah, Eva Anggraeni, Nenden Saniyyah Arnisya, Melinda Fahriani Asep Hidayat Azizah, Gina Nur Azkiah, Firza Basuki Basuki Cahyani, Rika Chyntia, Chyntia Cindy Elsa Parani Ciski, Dina Damayanti, Desi Deddy Sofyan Deddy Sofyan, Deddy Dede Kurniadi Dewi, Ranti Santika Egi Al-Siyam Ekasatya Aldila Afriansyah Elfania Kartini Eris Iswara Fajar, Pipih Nurul Firmawatie, Ai Ahnae Gani Arrijal, Ahmad Hadiansyah, Nirwan Hakiki, Sufi Nur Hilman Firmansyah, Hilman Hilman, Shinta Indriawati Hoerudin, Endin Imas Komariah Imas Komariah, Imas Irena Puji Luritawaty Iswara, Eris IYAM MARYATI Jejen Jejen, Jejen Kartina, Tina Kusumah, Reni Risnawati Latifah, Yusi Leni Maulani Leni Maulani, Leni Lesmana, Andi Lestari, Liya Lisna, Yusi Yusnita Juwita Maharani, Renita Putri Masripah, Imas Siti Maulana, Redi Maya Sari Mudzakin, Fikri Mulyadi, Redi Muthmainnah, Maulidya Nabilah Citra Amalia Ulfa Nenden Saniyyah Anggraeni Neng Intan Purnama Putri Nirwan Hadiansyah Nita Puspitasasri Nitta Puspitasari Noordina, Mega Achdisty Nugraha, Agah Nugraha, Agah Nugraha, Regar Esa Nur Azizah, Gina Nurbani, Tri Nurdiansyah, Samsul Nuryadin, Rully Parani, Cindy Elsa Pitriyani Pitriyani Puji Lestari Puspitasari, Nitta Puspitasari, Rista Putri, Neng Intan Purnama Rahma, Nazwa Aulia Ranti Santika Dewi Reni Nuraeni Reni Nuraeni, Reni Robbani, Ilham Ali Rudi Sutrio Salam, Mutiara Samsul Nurdiansyah sari putri Silvi Uswatun Nisa Siti Sadiah Solihat, Deti Farida Sufi Nur Hakiki Sukanto Sukandar Madio Sumia, Sumia Sumiarelati, Sumia Suryadi, Yopi Teni Sritresna Tina Sri Sumartini, Tina Sri Undang Indrajaya Wartini, Tini Yohana, Anggraeni Yayu Zahra, Salma Nur Zhesi, Zhesi