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All Journal Jurnal Pendidikan Matematika Kreano, Jurnal Matematika Kreatif-Inovatif JIPM (Jurnal Ilmiah Pendidikan Matematika) Jurnal Elemen Union: Jurnal Ilmiah Pendidikan Matematika Wacana Akademika : Majalah Ilmiah Kependidikan Journal of Mathematics and Mathematics Education (JMME) JMPM: Jurnal Matematika dan Pendidikan Matematika Jurnal SOLMA JTAM (Jurnal Teori dan Aplikasi Matematika) Theorems (The Original Research of Mathematics) Jurnal Inventa Buana Pendidikan: Jurnal Fakultas Keguruan dan Ilmu Pendidikan Unipa Surabaya COMPTON: Jurnal Ilmiah Pendidikan Fisika Psychology, Evaluation, and Technology in Educational Research EDUKATIF : JURNAL ILMU PENDIDIKAN Journal of Authentic Research on Mathematics Eduacation (JARME) Abdi Wiralodra : Jurnal Pengabdian Kepada Masyarakat Southeast Asian Mathematics Education Journal Journal of Instructional Mathematics Ethnomathematics Journal Fraktal: Jurnal Matematika dan Pendidikan Matematika Jurnal Warta Desa (JWD) Unnes Journal of Mathematics Education INSANIA : Jurnal Pemikiran Alternatif Kependidikan Tamansiswa International Journal in Education and Science (TIJES) Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang International Journal of Mathematics and Mathematics Education (IJMME) Journal of Community Service (JCOS) JIPI (Jurnal IPA dan Pembelajaran IPA) IndoMath: Indonesia Mathematics Education Kanigara SIGMA DIDAKTIKA: Jurnal Pendidikan Matematika Jurnal Pengembangan Pembelajaran Matematika Jurnal Pendidikan Progresif Mathematics Education Journal Journal on Mathematics Education
Krida Singgih Kuncoro
Universitas Sarjanawiyata Tamansiswa
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Neuroscience Physics Public Health Social Sciences Other

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Direct Product dan Direct Sum dari Keluarga Grup Abelian Agustito, Denik; Kuncoro, Krida Singgih; Sukiyanto, Sukiyanto; Istiqomah, Istiqomah
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 7 No 2 (2022): September 2022 - February 2023
Publisher : Prodi Pendidikan Matematika Universitas Pesantren Tinggi Darul Ulum Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/jmpm.v7i2.3044

Abstract

Eksistensi dari direct product dalam kategori grup abelian ada; jika diberikan keluarga grup abelian yaitu {(G_i,+_i )?i?I} maka direct productnya adalah ?_(i?I)?G_i dan  extrenal direct sumnya juga ada yaitu ?_(i?I)?G_i. Kemudian jika diberikan sebuah keluarga subgrup normal dari grup abelian G yaitu {N_i?i?I}, maka internal direct sumnya juga ada dan dinotasikan dengan G=(_i?I^?)N_i.
Praxeological analysis in Indonesian and Singaporean mathematics textbooks: An understanding geometrical similarity by students Kuncoro, Krida Singgih; Suryadi, Didi; Dahlan, Jarnawi Afgani; Jupri, Al
Journal on Mathematics Education Vol. 15 No. 4 (2024): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v15i4.pp1197-1218

Abstract

Mathematics textbooks are essential tools for facilitating the achievement of learning objectives, yet their use varies across classrooms, even when the same mathematical concepts are being taught. This study aims to investigate students' understanding of geometrical similarity through praxeological analysis within the framework of the Anthropological Theory of the Didactic (ATD). The analysis identifies differences in the structuring of geometrical similarity tasks between Indonesian and Singaporean textbooks. According to ATD praxeology, mathematical content is analyzed through the "praxis" and "logos" blocks, where praxis encompasses task types (T) and techniques (τ), while logos involves technology (θ) and theory (Θ). The findings highlight distinct priorities in how geometrical similarity is presented in textbooks from both countries, with implications for students’ conceptual and procedural understanding. Specifically, the absence of pantograph tasks in Singaporean textbooks and the lack of scale factor exercises in Indonesian textbooks reflect differences in knowledge construction and task emphasis. These variations impact students' ability to relate textbook knowledge to real-world applications. The study underscores the significance of incorporating a diverse range of task designs and practical experiences to enhance students' geometric reasoning abilities. A well-structured textbook not only supports students in achieving learning objectives but also fosters a continuous process of building, connecting, and deepening their mathematical understanding.
Thinking Process of Concrete Student in Solving Two-Dimensional Problems Widodo, Sri Adi; Pangesti, Ambar Dana; Pangesti, Istiqomah; Kuncoro, Krida Singgih; Arigiyati, Tri Astuti
Mathematics Education Journal Vol. 14 No. 2 (2020): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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Abstract

The purpose of this research was to find out the thinking processes of a concrete student in solving two- dimensional problems. The research method used is descriptive qualitative. The research subjects were two students taken using purposive sampling. The instrument used was the Test of Logical Operations and problem-solving tests. Stages of data analysis used are researching all data, making a cognitive classification of students, choosing concrete students to be used as research subjects, reviewing the results of concrete student work in solving mathematical problems, verify data and data sources that have been classified and transcribed in the presentation or exposure of data. The results showed that at the stage of understanding the problem and re-checking the answers, concrete students use the assimilation at the stage of planning to solve the problem of doing the disequilibration. At the stage of carrying out a plan to solve a problem, concrete students carry out the accommodation. During this study, it was found that students 'habits in mathematical problem-solving did not plan to solve problems, did not re-examine answers, and there were students' habits by interpreting the final results of problems. It can be concluded that the students' concrete thinking processes in solving two- dimensional problems vary according to the stages of problem-solving.
Analyzing critical thinking enhancement and moment of inertia understanding through inquiry based virtual labs Erlangga, Sony Yunior; Sarwanto; Harlita; Fitriyah, Isnanik Juni; Yektyastuti, Resti; Kuncoro, Krida Singgih; Kusumaningrum, Betty
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 11 No 1 (2024): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v11i2.19628

Abstract

This study examines the effectiveness of inquiry-based virtual laboratory modules in improving civil engineering students' conceptual understanding of moment of inertia, with critical thinking skills as a moderating factor. Using a quasi-experimental 2x2 factorial design, 60 students were divided into experimental and control groups. The experimental group engaged with virtual lab modules featuring interactive simulations and case-based learning, while the control group received conventional lecture-based instruction. Results indicated significantly higher learning outcomes in the experimental group (mean score = 58.9) compared to the control group (46.5), with critical thinking skills further amplifying this effect. ANOVA analysis confirmed the significant impact of the intervention (F = 21.83, p < 0.001). The study highlights the importance of integrating technology with pedagogical strategies that foster critical analysis and self-directed exploration. These findings contribute to engineering education by demonstrating how virtual labs, when combined with inquiry-based learning, can bridge the gap between theoretical knowledge and practical application while accommodating diverse learning needs. Recommendations include curriculum integration of such modules and professional development for educators in implementing technology-enhanced, inquiry driven approaches.
Development of Science E-Worksheet Based on Socio Scientific Issues on the Human Respiratory System Meilani, Nisa; Pusporini, Widowati; Setyawan*, Dhimas Nur; Kuncoro, Krida Singgih; Poort, Elang Amadious; Sain, Zohaib Hassan
Jurnal IPA & Pembelajaran IPA Vol 9, No 3 (2025): SEPTEMBER 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i3.47895

Abstract

Learning in schools still tends to be teacher-centered, with student worksheets often being overly simplistic. Additionally, students generally prefer kinesthetic learning activities. To address this, we developed an electronic student worksheet (e-worksheet) based on socio-scientific issues (SSI) for the human respiratory system topic using a design-based research (DBR) approach. This study aimed to: (1) design and iteratively refine the SSI-based E- Worksheet through expert collaboration and user testing; (2) evaluate its feasibility; and (3) explore student responses. Conducted in a private junior high school in Yogyakarta, the DBR process involved four interconnected phases: problem analysis (interviews with teachers and classroom observations), prototype design, implementation cycles (with 10 and 77 students respectively), and reflective evaluation. Data were collected from science education experts, teachers, and eighth-grade students through observations, interviews, and questionnaires, then analyzed descriptively. Results indicate that the DBR process successfully produced a contextually grounded e-worksheet, rated highly feasible by experts (content suitability: 86%, graphics: 82%) and teachers. Student responses showed strong approval (85% relevance perception, 82% engagement increase), confirming its suitability for supporting science learning
Construction of Ordinal Numbers and Arithmetic of Ordinal Numbers Agustito, Denik; Kuncoro, Krida Singgih; Istiqomah, Istiqomah; Hendriyanto, Agus
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 3 (2023): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i3.15039

Abstract

The purpose of this paper is to introduce the idea of how to construct transfinite numbers and study transfinite arithmetic. The research method used is a literature review, which involves collecting various sources such as scientific papers and books related to Cantorian set theory, infinity, ordinal or transfinite arithmetic, as well as the connection between infinity and theology. The study also involves constructing the objects of study, namely ordinal numbers such as finite ordinals and transfinite ordinals, and examining their arithmetic properties. The results of this research include the methods of constructing both finite and transfinite ordinal numbers using two generation principles. Both finite and transfinite ordinal numbers are defined as well-orderings that are also transitive sets. Arithmetic of finite ordinal numbers is well-known, but the arithmetic of transfinite ordinal numbers will be introduced in this paper, including addition, multiplication, and exponentiation.
Persepsi Siswa terhadap Pembelajaran Matematika dan Kaitannya dengan Minat Serta Sikap Belajar Siswa Ade Ayu Dwiguningtyas; Agustito, Denik; Kusumaningrum, Betty; Kuncoro, Krida Singgih
Wacana Akademika: Majalah Ilmiah Kependidikan Vol 9 No 1 (2025): Mei 2025
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/wacanaakademika.v9i1.19814

Abstract

This study aims to describe the perceptions of class X students of Light Vehicle Engineering (TKR) towards mathematics learning and its impact on students' learning interests and attitudes. The study was conducted at one of the vocational schools in Yogyakarta with a qualitative approach and descriptive method. Data were collected using triangulation techniques through observation, open questionnaires, and in-depth interviews. The results showed that most students had negative perceptions of mathematics, which were considered difficult, confusing, and irrelevant to life or work in the automotive field. This perception resulted in low interest and negative attitudes such as indifference, passivity, and lack of enthusiasm. However, there were students who showed positive attitudes when the material presented was considered relevant and easy to understand. These findings indicate a close relationship between students' perceptions, interests, and attitudes towards mathematics learning. Therefore, it is important for educators to design learning strategies that are more contextual, applicable, and in accordance with the world of work in order to form positive perceptions of mathematics.
Desain e-book petunjuk praktikum IPA berbasis tri N (niteni, nirokke, nambahi) Widyawati, Ani; Setyawan, Dhimas Nur; Kuncoro, Krida Singgih
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 6 No 2 (2019): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v6i2.6096

Abstract

Internet of things  (IoT) lebih banyak mengambil peran dalam  segala bidang di era desruptif.  Pendidikan lebih ditekankan untuk berbasis digital dan paperless. Media cetak dalam pembelajaran semakin diminimalkan dan digeser dengan media digital agar lebih ramah lingkungan.  Tuntutan Internet of things  (IoT)  tetap harus mengedepankan budaya luhur bangsa Indonesia. Pembudayaan yang luhur merupakan dharma keempat dalam Catur Dharma Perguruan Tinggi Tamansiswa yang dapat dilakukan dengan membudayakan ajaran Ki Hadjar Dewantara pada pembelajaran. Salah satu ajaran Ki Hadjar Dewantara  adalah Tri N: niteni, nirokke, nambahi.  Penelitian ini bertujuan untuk mendeskripsikan  desain e-book petunjuk praktikum IPA berbasis Tri N (niteni, nirokke, nambahi). Metode yang digunakan adalah deskriptif kualitatif. Penelitian ini menghasilkan suatu desain e-book petunjuk praktikum IPA berbasis Tri N. Petunjuk praktikum IPA yang dihasilkan mempunyai karakteristik sebagai berikut yakni (1) berbentuk e-book, (2) memuat konsep ajaran Tri N  dalam kegiatan praktikum yang didesain menarik dalam bentuk tabel hubung kait yang disertai simbol, (3) menunjukkan akitifitas  Tri N yang sesuai  dalam setiap tahapan kegiatan praktikum, dan (4) mengajak praktikan untuk melakukan aktifitas niteni, nirokke, dan nambahi  selama praktikum.
Promoting the Pancasila Students’ Profiles through Mathematics Education in Schools: Ethnomathematics Roles Hendriyanto, Agus; Juandi, Dadang; Kuncoro, Krida Singgih; Fitriana, Laila; Sahara, Sani; Muhaimin, Lukman Hakim
Jurnal Pendidikan Progresif Vol 13, No 2 (2023): Jurnal Pendidikan Progresif
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Function of Ethnomathematics in the Development of Pancasila Student Profiles for Indonesian Students Via Mathematics Education in Schools. The present mathematics curriculum in Indonesia (IND) places a strong emphasis on the creation of a Pancasila student profile in order to ensure that pupils are learning mathematics in a meaningful way. This paper suggests an integration of ethnomathematics into the formal mathematics curriculum as one approach to dealing with these learning issues. It is based on a literature assessment of studies on ethnomathematics, mathematics education, and Pancasila student profile. The literature review method used with a narrative review design. A total of 28 articles were selected for publication at the final stage of the review process. In light of the preceding explanation, it is clear that ethnomathematics plays a part in the formal school mathematics curriculum since the context-relevant and constraint-filled problem-solving techniques give many abstract mathematical notions the required contextual meaning. Keywords: ethnomathematics, mathematics education, pancasila student profiles.DOI: http://dx.doi.org/10.23960/jpp.v13.i2.202305
Pendampingan Pembelajaran Tatap Muka Terbatas Berbasis Sosiograph untuk Meningkatkan Kemampuan Literasi pada Guru Sekolah Menengah Widodo, Sri Adi; Amalia, Ayu Fitri; Sukiyanto, Sukiyanto; Irfan, Muhammad; Kuncoro, Krida Singgih
Jurnal SOLMA Vol. 11 No. 1 (2022)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v11i1.8130

Abstract

Background: Meningkatkan kemampuan literasi siswa di era saat ini menjadi hal yang mutlak harus dilakukan oleh guru, tetapi selama pandemic covid-19 kemampuan literasi siswa menjadi kurang maksimal dan pembelajaran tatap muka terbatas belum optimal dilakukan. Memberikan pendampingan kepada guru untuk mendesain kelompok belajar berdasarkan sosiograph untuk mendukung literasi dan program merdeka belajar. Metode: Kegiatan ini diselenggrakan secara hybrid dengan materi sosialisasi miskonsepsi, literasi, sosiograph, implementasi desain pembelajran sosiograph, dan refleksi. Mitra yang mengikuti kegiatan ini sebanyak 86 Guru matematika dan Science yang yang berasal dari Yogyakarta, MGMP Matematika Ngawi, MGMP matematika Madrasah jawa timur, dan SMK Negeri Bintan Timur. Evaluasi program yang dilaksanakan ditentukan dari kriteria respon peserta terkait kegiatan ini berada pada kategori baik, dan kesediaan guru untuk menyampaikan informasi berkaitan pembelajaran tatap muka terbatas berbasis sosiograph di lingkungan tempat guru bekerja. Hasil: Guru menyakini bahwa desain pembelajaran tatap muka terbatas dengan menggunakan konsep sosiograph untuk membagi kelompok dapat mengurangi miskonsepsi matematis dan meningkatkan kemampuan literasi siswa baik numerasi dan science. Kesimpulan: Pendampingan ini memiliki respon yang baik bagi guru matematika dan science. Selain itu, dari pendampingan ini, guru bersedia untuk mensosialisasikan desain pembelajaran dengan pembentukan kelompok berdasarkan sosiograph.
Co-Authors Ade Ayu Dwiguningtyas Agustin Zakkia Agustina Sri Purnami Agustinus Eko Susetyo Agustinus Susetyo Ainun Fachrunisa Almardhiyyah, Al Ainaa Ambar Dana Pangesti Amin Suyitno Anggun Apriliani Ani Widyawati Ani Widyawati, Ani Annis Deshinta Ayuningtyas Aprilia Nurul Chasanah Arif Usman Astuti Wijayanti Ayu Fitri Amalia Ayu Fitri Amalia Ayu Fitri Amalia, Ayu Fitri Betty Kusumaningrum Betty Kusumaningrum Betty Kusumaningrum Dadang Juandi Dafid Slamet Setiana Davet Nur Alviyan Denik Agustito Deri Fathurahman Arif Dhimas Nur Setyawan Diah Wulandari Diari Indriati Didi Suryadi Elfrida Yani Endang Sugiharti, Endang Esti Harini, Esti Fiki Alghadari Fitria Sulistyowati Fitriana, Laila Hapsari, Nadya Amalia Putri Harlita Hasbi Arsanti Hendriyanto, Agus I Nyoman Arcana Iffatul Ulya Ilmi Inayati Imam Sujadi Isnanik Juni Fitriyah Istiqomah istiqomah istiqomah Istiqomah Istiqomah Jarnawi Afgani Dahlan K Kustantini Kharisma Indah Lestari Kholifah Dinnisa Kusumaningrum, Betty Laila Fitriana Laily Rochmawati Listiyani Lestari, Ega Sri Lukman hakim muhaimin Luqmanul Hakim Martiwi Parisa Meilani, Nisa Meirani, Fajar Monika Agnes Henny Kinanti Muhaimin, Lukman Hakim muhammad irfan Muhammad Irfan Muhammad Irfan Muhammad Irfan Muhammad Tri Wijaya Nasution, Annio Indah Lestari Nia Kania Nia Kania Niken Hajar Indah Sari Nugraheni, Zahra Nurul Islamia , Almira Pangesti, Ambar Dana Pangesti, Istiqomah Poort, Elang Amadious Rani Puspita Rani Puspita Resti Yektyastuti, Resti Riawan Yudi Purwoko Ryopanintama Yuniar Putra S Sukiyanto Sahara, Sani Sain, Zohaib Hassan Sani Sahara Sarwanto Setyawan*, Dhimas Nur Sony Yunior Erlangga Sri Adi Widodo Sri Adi Widodo Sri Adi Widodo Sri Adi Widodo Sugiharti, Endang Sukiyanto Sukiyanto Sukiyanto, Sukiyanto Suyitno, Amin T. Tintia Taufik Hidayat Tiara Pramudianti Tri Astuti Arigiyati Tri Astuti Arigiyati Tri Astuti Arigiyati Tri Astuti Arigiyati, Tri Astuti Trisniawati Utami, Dika Rizky Nur Widowati Pusporini, Widowati Wuryan Tri Kartiko