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All Journal Kreano, Jurnal Matematika Kreatif-Inovatif Jurnal Terapan Abdimas Union: Jurnal Ilmiah Pendidikan Matematika Wacana Akademika : Majalah Ilmiah Kependidikan PRISMA SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Teorema: Teori dan Riset Matematika COMPTON: Jurnal Ilmiah Pendidikan Fisika Psychology, Evaluation, and Technology in Educational Research M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Jurnal Visi Pengabdian Kepada Masyarakat Progressive of Cognitive and Ability Indonesian journal of teaching and learning International Journal of Mathematics and Mathematics Education (IJMME) Empowering Humanity Journal of Community Capacity Empowerment
Kusumaningrum, Betty
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Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Development of Tri-N (niteni, nirokke, nambahi) based e-modules on linear equations material for junior high school students Kusumaningrum, Betty; Istiqomah, Istiqomah; Langobelen, Petrus Damianus Sapan
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 3 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i3.17203

Abstract

This study was motivated by the need to enhance student understanding of linear equations through innovative and practical learning resources. The primary aim was to develop and evaluate the validity and practicality of a Tri-N-based E-Module specifically designed for linear equation material. Utilizing a research and development (R&D) approach, the study followed the Four-D model, comprising Define, Design, Develop, and Disseminate stages. Conducted at SMP Negeri 3 Yogyakarta, the research involved 26 eighth-grade students as participants, with data collected through interviews and questionnaires, including validation surveys by material experts, media specialists, and students. The resulting E-Module, tailored to the learning needs of eighth-grade students, was validated with high scores from experts in material and media. Student feedback strongly affirmed its practicality and efficacy in facilitating learning. These findings confirm the Tri-N-based E-Module as a valid and practical tool for teaching linear equations, with significant potential to improve learning outcomes and instructional quality in mathematics education.
The role of peer interaction in fostering student motivation in mathematics education Wulandari, Amima; Kusumaningrum, Betty; Istiqomah, Istiqomah; Arigiyati, Tri Astuti; Bergman, Luc
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 2 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i2.19481

Abstract

Mathematics is often seen as a challenging subject that demands not only cognitive ability but also sustained motivation. This study investigates how peer interaction can act as a catalyst for enhancing students’ motivation to learn mathematics. Adopting a qualitative approach with a survey design, data were collected from 40 high school and vocational students in Gunungkidul, Indonesia. Thematic analysis of open-ended questionnaire responses revealed that 72% of students reported higher motivation when learning alongside peers. Key motivational drivers included emotional support, collaborative problem-solving, and peer-driven encouragement. Interestingly, the study also highlighted potential setbacks such as interpersonal conflicts, which may reduce motivation. These findings affirm the transformative role of peer relationships in academic contexts and suggest that fostering supportive peer networks can be a strategic tool in improving students’ engagement with mathematics. This study contributes to educational psychology and mathematics education by demonstrating that peer interaction not only fosters emotional well-being but also improves students’ cognitive engagement with complex mathematical concepts. The findings offer practical insights into how structured peer collaboration can be integrated into instructional design to support diverse learner needs. By highlighting the dual role of peer interaction, as both an academic and affective resource, the study provides a foundation for developing socially responsive and student-centered learning environments aimed at improving mathematical achievement.
A study on mathematics anxiety and its manifestations in vocational high school students Sahidah, Nur; Kusumaningrum, Betty; Ayuningtyas, Annis Deshinta; Wijayanto, Zainnur; Bergman, Patrick
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 2 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i2.19509

Abstract

Mathematics is often perceived as a difficult subject that triggers anxiety, especially among students facing academic pressure. This study aims to analyze and describe the level of mathematics anxiety experienced by final-year vocational high school students. Employing a descriptive qualitative approach, data were collected through a questionnaire distributed to six randomly selected Grade XII students from a vocational school in Gedangsari. The instrument consisted of 23 statements: 6 positive and 17 negative using a Likert scale to assess students’ anxiety. Data analysis followed the Miles & Huberman model, which includes data reduction, display, and verification. The results showed varying levels of mathematics anxiety: 2 students were categorized as having very high anxiety, 3 were in the moderate category, and 1 student experienced very low anxiety. Students with high anxiety reported symptoms such as trembling hands, increased heart rate, mental blocks, and a lack of confidence during mathematics tasks. Meanwhile, students with lower anxiety demonstrated greater emotional control, focus, and proactive engagement in learning activities. The findings indicate that mathematics anxiety can significantly hinder students’ cognitive and emotional capacity to learn effectively. This study contributes to educational psychology by providing insight into how mathematics anxiety manifests among vocational high school students. It highlights the importance of recognizing emotional factors in learning, particularly in high-pressure academic contexts. The results can inform teachers, counselors, and curriculum designers in developing supportive strategies to reduce anxiety and enhance mathematical engagement in vocational education. In conclusion, addressing mathematics anxiety is crucial for fostering a positive and supportive learning environment that empowers students to perform better academically. This research contributes to the understanding of mathematics anxiety in vocational education and emphasizes the need for empathetic, emotion-sensitive teaching approaches that support both cognitive and emotional student development.
Kesalahan Siswa dalam Menyelesaikan Soal Cerita Sistem Persamaan Linear Dua Variabel Ayu Dwiguningtyas, Ade; Kusumaningrum, Betty; Agustito, Denik; Istiqomah, Istiqomah; Astuti Arigiyati, Tri; Deshinta Ayuningtyas, Annis
Wacana Akademika: Majalah Ilmiah Kependidikan Vol 9 No 2 (2025): November 2025 (In Progress)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/wacanaakademika.v9i2.19876

Abstract

Students' errors in solving mathematical problems reflect their level of understanding and systematic thinking skills. This qualitative study aims to identify the types of errors and factors causing students' difficulties in solving the System of Linear Equations in Two Variables (SPLDV). The subjects were three eighth-grade junior high school students in Banjarnegara who were selected purposively. Data were obtained through written tests, in-depth interviews, and documentation. The results showed three main error categories: errors in modeling problems, calculations, and incomplete answer structures. The contributing factors include weak conceptual understanding, minimal contextual practice, the habit of solving problems instantly, and a lack of thorough problem interpretation. These findings are expected to provide an empirical basis for teachers and curriculum developers in designing effective learning and emphasizing conceptual understanding, contextual practice, reasoning, and systematic communication in SPLDV material
Analisis Kesalahan Mahasiswa Teknik Komputer dalam Memecahkan Masalah Limit Fungsi Naibaho, Risko; Sulistyowati, Fitria; Istiqomah, Istiqomah; Agustito, Denik; Kusumaningrum, Betty; Udil, Patrisius Afrisno; Utami, Wikan Budi
Teorema: Teori dan Riset Matematika Vol 10, No 2 (2025): September
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/teorema.v10i2.21595

Abstract

Tujuan penelitian ini adalah untuk mengidentifikasi kesulitan mahasiswa teknik komputer dalam menyelesaikan materi limit fungsi aljabar dengan berbagai teknik penyelesaian dalam limit fungsi serta menemukan faktor-faktor penyebab kesulitan mahasiswa dalam menyelesaikan soal limit fungsi aljabar. Jenis penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif  yang mendeskripsikan kesulitan mahasiswa dalam menyelesaiakn materi limit fungsi aljabar. Subjek penelitian ini yaitu mahasiswa teknik komputer. Teknik pengumpulan data yang digunakan dalam penelitian ini teknik triangulasi yaitu dokumentasi, observasi, dan wawancara. Kesimpulan yang diperoleh dari penelitian ini adalah subjek mengalami kesulitan dalam memahami dan menerapkan konsep limit fungsi aljabar, kesulitan ini disebabkan oleh kurangnya pemahaman terhadap konsep dasar limit, yang merupakan pondasi penting untuk bisa memahami limit. Akibatnya subjek menggunakan teknik penyelesaian yang tidak tepat seperti hanya mengandalkan teknik subtitusi langsung. Selain itu subjek tampaknya tidak mampu menterjemahkan soal yang memerlukan penyederhanan lanjutan untuk menemukan penyelesaian dari soal limit tersebut.Kata kunci: Limit Fungsi Aljabar, Kesulitan Mahasiswa, Teknik Komputer
Co-Authors Ade Ayu Dwiguningtyas Agustinus Eko Susetyo Ana Fitrotun Nisa, Ana Fitrotun Ani Widyawati, Ani Annis Deshinta Ayuningtyas, Annis Deshinta Astuti Arigiyati, Tri Ayu Dwiguningtyas, Ade Azis Muhaimin, Nur Bergman, Luc Bergman, Patrick Budhi, Widodo Dafid Slamet Setiana Denik Agustito Deshinta Ayuningtyas, Annis Devi Septiani Dewi, Rahmita Fitri Dhimas Nur Setyawan Didi Supriyadi Eriana, Sabila Erni Puji Astuti Esti Harini, Esti Fajarudin, Muhamad Fitria Sulistyowati Harlita Hera, Cicilia Jaga I Nyoman Arcana Imam Ghozali Isnanik Juni Fitriyah istiqomah istiqomah Krida Singgih Kuncoro Laila, Annis Nur Langobelen, Petrus Damianus Sapan Lestari, Ega Sri LESTARI, SANTI Listia, Amanda Putri Meirani, Fajar Miftakhul Huda Naibaho, Risko Nur Setyawan, Dhimas Nurmala, Ika Nurul Islamia , Almira Pardimin Pardimin, Pardimin Patrisius Afrisno Udil, Patrisius Afrisno Pratiwi, Putri Anugrah Ayuning Prihatin, Ayung Yeni Resti Yektyastuti, Resti Riawan Yudi Purwoko Riyanita Sarani, Fajar Sahidah, Nur Salma Azizah, Salma Sarwanto Sheidu, Comfort Fatimoh Sony Yunior Erlangga Sukiyanto Sulaimon, Jamiu Temitope Syamsul Hadi Tri Astuti Arigiyati, Tri Astuti Trisharsiwi Trisharsiwi, Trisharsiwi Wikan Budi Utami Wulandari, Amima Yaakub, Mohd Syarull Azlan Yunior Erlangga, Sony Yuyun Yulia Zainnur Wijayanto