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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) 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
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 Mathematics Neuroscience Physics Public Health Social Sciences Other

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Mathematical communication skills in the context of linear equations: A study on students' proficiency and self-esteem Kuncoro, Krida Singgih; Kusumaningrum, Betty; Agustito, Denik; Meirani, Fajar; Lestari, Ega Sri
Psychology, Evaluation, and Technology in Educational Research Vol. 6 No. 1 (2023)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/petier.v6i1.178

Abstract

This research aimed to analyze the mathematical communication skills of eighth-grade students in junior high school regarding the topic of linear equations. The population of this study consisted of eighth-grade students in one of the schools in Yogyakarta. Prior to selecting the subjects, a self-esteem questionnaire was administered, and then 6 students were randomly chosen, with 3 students having high self-esteem and 3 students having medium self-esteem. The selected students were then given a written test on mathematical communication skills and an interview. The data collected for this study included the results of the written test and the interviews. Based on the data analysis conducted, it was found that among the six selected students, SP1 was able to answer the questions using written text, drawing, and mathematical expressions, but their communication of the answers was not accurate. SP2 exhibited higher mathematical communication skills compared to the other subjects. SP3 had low mathematical communication skills, SP4 had moderate communication skills, SP5 had low mathematical communication skills, and SP6 could be considered to have moderate communication skills. Therefore, it is expected that teachers can provide students with the freedom to solve problems according to their own understanding and ideas.
Development of 3N-Oriented TPACK Mathematical Computing E-Modules Kuncoro, Krida Singgih; Arigiyati, Tri Astuti
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol 8, No 2 (2020)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v8i2.5833

Abstract

Technology always develops from time to time and is very closely related to real-life, which is to solve everyday problems. This study aims to describe the design of 3N-oriented TPACK-based mathematical computing modules (niteni, nirokke, nambahi). The method used is descriptive qualitative part of development research. This research resulted in an E-module design. Mathematical Computing E-Module has the following characteristics (1) containing the TPACK concept and 3N teachings that are designed to be attractive, (2) showing the appropriate 3N activities in the lecture process, and (3) inviting students to carry out niteni, nirokke, and nambahi activities during lesson. The design of 3N-Oriented TPACK based on Mathematical Computing E-Modules is declared valid.
Ethnomathematics In the Museum of Sasmitaloka Panglima Besar Jendral Sudirman Yogyakarta In Improving Students' Creative Thinking Ability Purnami, Agustina Sri; Utami, Dika Rizky Nur; Kuncoro, Krida Singgih
IndoMath: Indonesia Mathematics Education Vol 5, No 2 (2022)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v5i2.36

Abstract

Ethnomathematics as a medium in learning mathematics also aims to introduce and preserve culture or history in Indonesia. Creative thinking is a thinking process to connect concepts in mathematics with real objects it faces, so it takes perseverance, personal discipline, which involves mental activities such as observing, asking questions, analyzing, using new information and unusual ideas to synthesize, make connections. , relationships, connecting with each other to form new understandings or concepts intuitively. In this regard, the aim of this research is to improve students' creative thinking skills in learning mathematics, especially rectangular and triangular shapes by providing treatment in mathematics learning using the ethnomathematics of the Sasmitaloka Museum Panglima Besar Jenderal Sudirman. This research was conducted at SMP in Yogyakarta. This research is a quasi-experimental study with a sample of 30 students divided into 2 classes, namely the control class and the experimental class. Based on the results of the study, it was concluded that there was an increase in students' creative thinking skills on the material of rectangles and triangles with the ethnomathematics of the Sasmitaloka Museum Panglima Besar Jenderal Sudirman in class VIII students where the Asymp score. Sig is less than 0.05, so it can be concluded that ethnomathematics can improve students' creative thinking skills.
Analisis Karakter Tanggung Jawab Ditinjau dari Kemampuan Awal Pemecahan Masalah melalui Problem Based Learning Kuncoro, Krida Singgih; Istiqomah; Hakim, Luki Luqmanul; Widodo, Sri Adi
Jurnal Pengembangan Pembelajaran Matematika (JPPM) Vol. 3 No. 2 (2021): Jurnal Pengembangan Pembelajaran Matematika: Volume 3 Nomor 2 Agustus 2021
Publisher : Pusat Studi Pengembangan Pembelajaran Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jppm.2021.32.61-75

Abstract

Karakter tanggung jawab merupakan salah satu karakter yang harus dimiliki oleh mahasiswa sebelum terjun ke dunia kerja. Penelitian ini bertujuan untuk mengetahui karakter tanggung jawab ditinjau dari kemampuan awal pemecahan masalah melalui model pembelajaran Problem Based Learning. Metode penelitian yang digunakan adalah metode kombinasi (mixed method) dengan model sequential explanatory yakni penggabungan metode penelitian kuantitatif dan metode kualitatif secara berurutan. Analisis data kuantitatif diarahkan untuk menganalisis kemampuan awal pemecahan masalah mahasiswa dan analisis data kualitatif diarahkan untuk mengetahui karakter tanggung jawab berdasarkan kemampuan awal pemecahan masalah. Subjek penelitian ini adalah mahasiswa pendidikan matematika Universitas Sarjanawiyata Tamansiswa semester 1 sejumlah 37 mahasiswa. Hasil penelitian menunjukkan bahwa terdapat peningkatan pembentukan karakter tanggung jawab mahasiswa selama pembelajaran Problem Based Learning jika ditinjau dari kemampuan awal pemecahan masalah.
Effectiveness of E-Worksheets on Problem-Solving Skills: A Study of Students' Self-Directed Learning in the Topic of Ratios Harini, Esti; Nurul Islamia , Almira; Kusumaningrum, Betty; Singgih Kuncoro, Krida
International Journal of Mathematics and Mathematics Education (IJMME) Vol. 1 No. 2 (2023)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.068 KB) | DOI: 10.56855/ijmme.v1i02.333

Abstract

This study investigates the effectiveness of E-Worksheets in enhancing students' problem-solving skills, with a specific focus on self-directed learning, in the topic of ratios. The research examines the impact of technology-based learning tools on students' ability to solve problems and explores the relationship between self-directed learning and problem-solving abilities. The study employs a control group design, comparing the performance of students using E-Worksheets with those in a control group. The findings indicate that the use of E-Worksheets significantly improves students' problem-solving skills compared to the control group. Moreover, the analysis reveals a positive association between students' level of self-directed learning and their problem-solving abilities. These findings support the integration of technology in the learning process to create interactive and engaging experiences that foster problem-solving skills. The study emphasizes the importance of cultivating students' self-directed learning and recommends strategies for educators to promote independent problem-solving and collaboration among students. The implications of this research contribute to the understanding of the role of E-Worksheets and self-directed learning in enhancing problem-solving skills and provide valuable insights for future research and educational practices.
Mathematical induction, transfinite induction, and induction over the continuum Agustito, Denik; Sukiyanto, Sukiyanto; Kuncoro, Krida Singgih
International Journal of Mathematics and Mathematics Education (IJMME) Vol. 1 No. 2 (2023)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.617 KB) | DOI: 10.56855/ijmme.v1i02.385

Abstract

This article examines three types of induction methods in mathematics: mathematical induction, transfinite induction, and induction over the continuum. If a statement holds true for all natural numbers, it is proven using mathematical induction. If a statement holds true for all ordinal numbers, it is proven using transfinite induction. Since induction over the continuum cannot be applied to a statement, when something is said to be proven true for every point in [a, b), the proof is done using induction over the continuum.
THE ANALYSIS OF POOR COMMUNICATION IMPACT ON STUDENTS’ INTEREST IN LEARNING EXPONENT TOPIC Almardhiyyah, Al Ainaa; Sulistyowati, Fitria; Kuncoro, Krida Singgih; Nugraheni, Zahra; Hapsari, Nadya Amalia Putri
Journal of Authentic Research on Mathematics Education (JARME) Vol 7, No 1 (2025)
Publisher : Program Studi Magister Pendidikan Matematika, Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/jarme.v7i1.14363

Abstract

Classroom learning requires effective communication between teachers and students to create a conducive environment and enhance learning. This study analyzes the impact of teacher communication on students' interest in learning exponents using a descriptive approach. Data were collected through observation, interviews, and documentation involving 10th-grade students and a mathematics teacher at a vocational school in Yogyakarta, selected via purposive sampling. The findings show that effective communication increases students' motivation, active participation, and understanding of exponents. Interactive methods, such as discussions and QA sessions, foster student engagement and improve their grasp of the material. These results highlight the critical role of teacher-student communication in creating an enjoyable and effective learning experience, ultimately supporting better academic outcomes.
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)

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

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.
Co-Authors Ade Ayu Dwiguningtyas Agustin Zakkia Agustina Sri Purnami Agustinus Eko Susetyo Agustinus Susetyo Almardhiyyah, Al Ainaa Ambar Dana Pangesti Amin Suyitno 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 Betty Kusumaningrum Dadan Rahmat Dadang Juandi Dafid Slamet Setiana Davet Nur Alviyan Denik Agustito Deri Fathurahman Arif Devi Septiani Dhimas Nur Setyawan Diah Wulandari Diari Indriati Didi Suryadi Djaka Firmansyah Robbiana Eka Yulia Sari Elfrida Yani Endang Sugiharti, Endang Esti Harini Esti Harini, Esti Fachrunisa, Ainun Farhan Hamdallah Fiki Alghadari firliani Fitria Sulistyowati Fitriana, Laila Hapsari, Nadya Amalia Putri Harlita Hasbi Arsanti Hendriyanto, Agus Heru Sukoco Hidayati Hidayati I Nyoman Arcana Iffatul Ulya Iik Nurhikmayati Ilmi Inayati Imam Sujadi Isnanik Juni Fitriyah Istiqomah Istiqomah Istiqomah istiqomah istiqomah Jarnawi Afgani Dahlan K Kustantini Kharisma Indah Lestari Kholifah Dinnisa Kusumaningrum, Betty Laily Rochmawati Listiyani Lestari, Ega Sri Lukman hakim muhaimin Luqmanul Hakim Martiwi Parisa Meilani, Nisa Meirani, Fajar Mohamad Basri Nadzeri Monika Agnes Henny Kinanti Muhaimin, Lukman Hakim muhammad irfan Muhammad Irfan Muhammad Irfan Muhammad Irfan Muhammad Tri Wijaya Nasution, Annio Indah Lestari Nelly Rhosyida Niken Hajar Indah Sari Novy Anggraini Sudibyo Nugraheni, Zahra Nurul Islamia , Almira Pangesti, Ambar Dana Pangesti, Istiqomah Poort, Elang Amadious Pujia Siti Balkist Rani Puspita Rani Puspita Resti Yektyastuti Riawan Yudi Purwoko Rika Mulyati Mustika Sari Rizky Dwi Siswanto Ryopanintama Yuniar Putra S Sukiyanto Sain, Zohaib Hassan Sani Sahara Sarwanto Sony Yunior Erlangga 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 Trisniawati Trisniawati Utami, Dika Rizky Nur Widowati Pusporini, Widowati Wuryan Tri Kartiko Yumi Sarassanti Zohaib Hassan Sain