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All Journal Journal on Mathematics Education (JME) Journal on Mathematics Education (JME) Journal of Research and Advances in Mathematics Education IJIET (International Journal of Indonesian Education and Teaching) Sekolah Dasar: Kajian Teori dan Praktik Pendidikan International Journal of Science and Applied Science: Conference Series Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Pendidikan Matematika (Jupitek) Asimtot : Jurnal Kependidikan Matematika JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Leibniz: Jurnal Matematika Pattimura Proceeding : Conference of Science and Technology Edumatica: Jurnal Pendidikan Matematika JRAMathEdu (Journal of Research and Advances in Mathematics Education) Riemann : Research of Mathematics and Mathematics Education Proceeding International Conference on Mathematics and Learning Research Jurnal Pendidikan MIPA
Hongki Julie
Universitas Sanata Dharma
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Materials Science & Nanotechnology Mathematics Physics Social Sciences

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The elementary school teachers’ ability in adding and subtracting fraction, and interpreting and computing multiplication and division fraction Hongki Julie
International Journal of Science and Applied Science: Conference Series Vol 1, No 1 (2017): International Conference on Science and Applied Science (Engineering and Educati
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (668.762 KB) | DOI: 10.20961/ijsascs.v1i1.5114

Abstract

The purpose of this study was to describe the elementary school teachers’ mathematical skills on the numbers, especially fractions after they have participated in a workshop. The teachers’ abilities which would be described by the researcher in this study were the ability to interpret, to order, to add and subtract, to interpret the meaning of the multiplication and division, to multiply and divide, and to make problems about fractions. In this paper, the author just only would describe the teachers’ mathematical skills in adding and subtracting two fractions, interpreting the multiplication and division of two fractions, multiplying and dividing two fractions. This capability was described base on the results of a test given to teachers after they have attended the workshop. Research subjects in this study were 17 Kanisius Demangan elementary school teachers at Yogyakarta. Of the 17 teachers, 16 teachers could add and subtract two fractions. Six teachers of 17 teachers could interpret what was the meaning of multiplication of two fractions. One teacher could interpret what was the meaning of division of two fractions. All of the teachers could divide two fractions. Sixteen teachers of 17 teachers could multiply two fractions.
ANALISIS DAMPAK PEMBELAJARAN MATEMATIKA REALISTIK TERHADAP PEMBELAJARAN DARING VIA WHATSAPP GROUP PADA MATERI PERMUTASI Zacharias Angelius Krisnadi Wara Sabon; Hongki Julie
Asimtot : Jurnal Kependidikan Matematika Vol 3 No 1 (2021): Asimtot: Jurnal Kependidikan Matematika | Desember 2020 - Mei 2021
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Widya Mandira

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

Abstract

Tujuan dari penelitian ini yaitu (1) mendeskripsikan langkah-langkah membelajarkan mahasiswa dengan Pembelajaran Pendidikan Matematika Realistik (PMR) dan (2) mendeskripsikan dampak dari pendekatan pendidikan matematika realistik terhadap pemahaman mahasiswa pada materi permutasi. Jenis penelitian yang digunakan adalah penelitian desain. Subjek dalam penelitian ini yaitu mahasiswa semester 3, program studi pendidikan matematika, universitas sanata dharma sebanyak 42 mahasiswa. Instrumen penelitian yang digunakan adalah catatan lapangan dan lembar tes hasil belajar. Metode penelitian ini adalah deskriptif kualitatif dimana hasil dari penelitian ini mendeskripsikan secara rinci untuk menjawab tujuan dari penelitian. Berdasarkan tujuan penelitian yang telah dirumuskan, diperoleh hasil dari penelitian ini yaitu: (1) langkah-langkah pembelajaran mengacu kepada karakteristik pembelajaran PMR yaitu a) penggunaan konteks. b) penggunaan model untuk matematisasi progresif. c) pemanfaatan hasil konstruksi siswa. d) interaktivitas. e) keterkaitan (2) dampak positif dari pembelajaran yang dilakukan yaitu mahasiswa dapat memahami dan mengikuti dengan baik pembelajaran yang dilakukan.
PELATIHAN IMPLEMENTASI KURIKULUM MERDEKA BAGI GURU-GURU MATEMATIKA DI KABUPATEN TIMOR TENGAH UTARA, PROVINSI NUSA TENGGARA TIMUR Cecilia Novianti Salsinha; Chatarina Enny Murwaningtyas; Marcellinus Andhy Rudhito; Hongki Julie; Amsikan Stanislaus; Selestina Nahak; Hendrika Bete
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 1 (2024): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i1.204-214

Abstract

Peluncuran Kurikulum Merdeka di Indonesia telah menandai perubahan penting dalam sektor pendidikan, khususnya bagi para guru matematika di Kabupaten Timor Tengah Utara. Tantangan baru dan peluang untuk pengembangan profesional ini menuntut pemahaman yang lebih mendalam tentang kurikulum dan adaptasi metode pengajaran yang sesuai. Untuk mendukung transisi ini, sebuah program pelatihan khusus telah dirancang, bertujuan untuk memperdalam pemahaman guru tentang berbagai aspek Kurikulum Merdeka dan meningkatkan keterampilan praktis mereka dalam penerapannya. Melalui diskusi interaktif dan tugas-tugas kreatif, fokus pelatihan diberikan pada pengembangan Alur Tujuan Pembelajaran (ATP) dan modul pembelajaran yang inovatif, mendorong pendekatan pengajaran yang lebih efektif dan kreatif. Hasilnya, terlihat peningkatan signifikan dalam kemampuan guru untuk menerapkan strategi dan metode yang diajarkan, menciptakan lingkungan pembelajaran yang lebih dinamis dan menarik. Kemajuan ini tidak hanya memperkuat keterampilan pedagogis guru tetapi juga meningkatkan kualitas pengalaman belajar siswa, memberikan dampak positif pada pengajaran matematika secara umum.
Analisis Kemampuan Pemodelan Siswa SMA pada Topik Program Linear Stephani Rangga Larasati; Hongki Julie
Leibniz: Jurnal Matematika Vol. 1 No. 1 (2021): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v1i1.46

Abstract

Berdasarkan tes yang dilakukan oleh peneliti pada siswa kelas XII di sebuah SMA di Yogyakarta, terdapat beberapa masalah terkait program linear, yaitu (1) siswa kesulitan dalam memodelkan masalah matematika ke dalam fungsi kendala dan objektif, (2) siswa terlalu terpaku dengan langkah pengerjaan yang diberikan guru, (3) siswa mengalami keputusasaan karena masalah program linear seringkali berupa kalimat panjang yang membuat siswa kebingungan. Penelitian ini bertujuan untuk mengetahui level kemampuan memodelkan siswa yang dilihat dari tes hasil belajar. Subjek penelitian adalah 31 siswa kelas XI IPS 1 di sebuah SMA di Yogyakarta. Data penelitian berupa hasil tes. Data tersebut diklasifikasi berdasarkan jawaban-jawaban yang sejenis lalu dianalisis berdasarkan indikator kemampuan memodelkan. Hasil penelitian menunjukkan bahwa dalam menyelesaikan soal tes nomor 1, 70,96% siswa berada pada level situasional, 22,58% siswa berada pada level referensial, dan 6,45% siswa berada pada level formal.Dalam menyelesaikan soal tes nomor 2, 93,59% siswa berada pada level situasional dan 6,45% siswa berada pada level formal.
Penggunaan Konteks Budaya Ramayana Ballet Prambanan Untuk Soal Literasi Matematika Bagi Siswa SMP Gunawan, Monica Tiara; Julie, Hongki; Ruditho, M. Andy
Pattimura Proceeding Vol 5 No 1 (2024): Prosiding Konferensi Nasional matematika (KNM) XXII Tahun 2024
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ppcst.knmxxiiv5i1p155-172

Abstract

The purpose of this research is to develop and classify mathematical literacy questions using the context of Ramayana Ballet Prambanan Ballet for junior high school students. The type of research used is design research. The data collection methods used were observation, test, and interview. The instrument validation process used by researchers is expert validation and the technique used to test data validity is triangulation technique. The data analysis process used was reducing data, presenting data, and drawing conclusions. The results obtained were from the context of the Ramayana Ballet Prambanan Ballet could be made eight questions in the domain of numbers, data and probability analysis, algebra, measurement, and geometry for cognitive levels (1) knowing with a counting indicator, (2) applying with interpreting, applying/executing indicators, and (3) reasoning with a making justification indicator.
PELATIHAN INOVASI PEMBELAJARAN STEAM MELALUI PENDEKATAN PROYEK DAN KAJIAN MASALAH BERBASIS KEARIFAN LOKAL Enny Murwaningtyas, Chatarina; Tiara Gunawan, Monica; Maharani, Wayan; Marfiani Tapo, Maria; Turnip, Grace; Andy Rudhito, Marcellinus; Julie, Hongki
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 1 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i1.309-321

Abstract

Pembelajaran Science, Technology, Engineering, Arts, and Mathematics (STEAM) merupakan pendekatan terintegrasi dalam pendidikan yang bertujuan untuk meningkatkan kemampuan berpikir kritis, pemecahan masalah, dan kreativitas siswa. Pendekatan ini menjadi lebih relevan ketika dikombinasikan dengan pembelajaran berbasis proyek dan kajian masalah yang berakar pada kearifan lokal, memungkinkan siswa untuk menghubungkan konsep-konsep ilmiah dengan konteks kehidupan nyata di lingkungan mereka. Untuk mendukung inovasi pembelajaran ini, sebuah program pelatihan khusus telah dirancang dengan tujuan memperdalam pemahaman guru mengenai pembelajaran STEAM melalui pendekatan proyek, meningkatkan keterampilan praktis dalam penerapannya, serta mengintegrasikan kajian masalah berbasis kearifan lokal. Melalui diskusi interaktif, tugas proyek kreatif, dan fokus pelatihan pada integrasi STEAM dengan kearifan lokal, program ini mendorong kolaborasi dan kreativitas di kalangan guru. Hasil pengabdian menunjukkan peningkatan signifikan dalam kemampuan guru untuk menerapkan STEAM dalam pembelajaran serta merancang proyek yang relevan dengan kearifan lokal, menciptakan lingkungan belajar yang kolaboratif dan menarik. Kemajuan ini tidak hanya meningkatkan motivasi guru dan kemampuan mereka dalam menyelesaikan masalah secara kreatif, tetapi juga meningkatkan kualitas pengalaman belajar siswa serta memberikan dampak positif pada pembelajaran matematika secara umum. Dengan integrasi STEAM dan kearifan lokal, pembelajaran menjadi lebih kontekstual, menarik, dan bermakna bagi siswa, mendukung perkembangan pendidikan yang lebih holistik dan kontekstual di Indonesia.
ETHNOMATHEMATICS STUDY OF PRAMBANAN RAMAYANA BALLET AND THE APPLICATION OF CONTEXT IN MATHEMATICAL PROBLEMS Gunawan, Monica Tiara; Julie, Hongki; Rudhito, Marcellinus Andy
IJIET (International Journal of Indonesian Education and Teaching) Vol 9, No 1 (2025): January 2025
Publisher : Sanata Dharma University Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijiet.v9i1.9371

Abstract

This research aimed to describe the history of Ramayana Ballet Prambanan performances, the performance of the second half of the AnomanObong scene, the philosophical meaning and characteristics of the second half of AnomanObong, the training of dancers of the second half of AnomanObong, and the fundamental activity of mathematics in the second half of AnomanObong. This qualitative research examined ethnomathematics in the cultural context of Ramayana Ballet Prambanan. Data were collected through observation, interviews, and documentation, with validation through experts and triangulation of sources and techniques. Data analysis included data reduction, presentation, and conclusion drawing. The results showed five mathematical activities in the history of Ramayana Ballet Prambanan, namely counting, locating, measuring, playing, and explaining. There are five mathematical activities in the second half performance of AnomanObong, namely: counting, locating, measuring, designing, and explaining. There existed four mathematical activities in the philosophical meaning of the second act of AnomanObong, namely counting, locating, designing, and explaining. The counting, locating, and measuring activities were present in all data classes and can be used for learning mathematics in the domains of numbers, algebra, geometry, and measurement. The designing activity was only present in the second, third, and fourth data classes, and can be applied in math learning.
Indonesian mathematics teachers’ views on distance learning barriers during the early Covid-19 pandemic Julie, Hongki; Rianasari, Veronika Fitri; Apriani, Maria Suci
JRAMathEdu (Journal of Research and Advances in Mathematics Education) Volume 7 Issue 1 January 2022
Publisher : Lembaga Pengembangan Publikasi Ilmiah dan Buku Ajar, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jramathedu.v7i1.15616

Abstract

The aim of this paper is to describe the views of mathematics teachers in Indonesia on the distance learning barriers during the early Covid-19 pandemic. Specifically, this paper investigates the barriers that teachers view as significant in distance learning and efforts taken to overcome the barriers during the early Covid-19 pandemic. This study employed a descriptive research design involving 415 mathematics teachers by snowball sampling to fill out an online questionnaire. This study shows that barriers related to pedagogical dimensions were perceived as significant in distance learning during the early Covid-19 pandemic. Moreover, this study reveals that most of the teachers did some efforts that can be done by the teachers themselves to overcome the barriers. Based on the findings, we argue that it is important to support teachers’ pedagogical competencies to conduct distance learning in order to face this current pandemic or any future crises that may potentially disrupt face-to-face learning.
ANALYSIS OF PROBLEM SOLVING SKILLS OF X GRADE STUDENTS FOR TRIGONOMETRY MATERIAL AFTER EXPERIENCING LEARNING USING A REALISTIC MATHEMATICS APPROACH ASSISTED BY GEOGEBRA Malau, Evi Ervera; Julie, Hongki
Jurnal Pendidikan Matematika (JUPITEK) Vol 7 No 2 (2024): Jurnal Pendidikan Matematika (JUPITEK)
Publisher : Program Studi Pendidikan Matematika FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jupitekvol7iss2pp102-110

Abstract

One of the abilities that students need to build when learning mathematics is problem solving ability, so that students can implement their mathematical knowledge. From the results of student tests in the previous year and exploring the problem, researchers found that the problem solving ability of students faced for Trigonometry material is analyzing problems, organizing ideas and solving problems. The purpose of this study is to describe how students' problem solving skills after experiencing learning with the Realistic Mathematics Education Approach (PMR) for Trigonometric Comparison material assisted by Geogebra. The research subjects were 31 grade X students in one of the private high schools in Bekasi city in 2024/2025. The data collection methods used were field notes, written tests, and interviews. The instrument validation technique used expert validation techniques, while to validate the data, triangulation techniques were used. The research results from the written test are as follows: (a) the most difficulties found for problems 1 and 2 were executing the plan to get a solution, and looking back at the solution process; (b) the most difficulties found for problem 3 were making a plan, executing the plan, and looking back at the solution process. From the interviews with five students, it was found that the most experienced difficulties were making a plan, carrying out the plan, and reviewing the solution process; (b) the most experienced difficulties for problem 3 were making a plan, carrying out the plan, and reviewing the solution process
ETNOMATEMATIKA DALAM UPACARA ADAT NAEK DANGO SUKU DAYAK KANAYAT KABUPATEN LANDAK PADA MATERI BANGUN RUANG SISI LENGKUNG Saputra, Eko; Julie, Hongki
JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Vol 11, No 1 (2025)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jp2m.v11i1.6658

Abstract

The Naek Dango Traditional Ceremony is a traditional ceremony of the Dayak Kanayat community in Merayuh Village, Air Besar District, Landak Regency, West Kalimantan Province. This study aims to explore ethnomathematics in the ceremony. Through ethnomathematics exploration, various mathematical concepts contained in the Naek Dango Traditional Ceremony can be identified, such as measuring volume and surface area. This research is a qualitative study with an ethnographic approach. The subjects of this study were the Temenggung and the Traditional Head of Merayuh Village. Data were obtained through active collection and analysis by the researcher. The collected data were analyzed through data condensation, data presentation, and continuous drawing of conclusions. The results of this study indicate that there is ethnomathematics in the Naek Dango Traditional Ceremony which is shown through the activities of calculating, determining locations, measuring, designing, playing, and explaining.
Co-Authors Achir Yani S. Hamid Amsikan Stanislaus Andhy Rudhito, Marcellinus Andy Rudhito, Marcellinus Bete, Hendrika Cecilia Novianti Salsinha Chatarina Enny Murwaningtyas Dewi, Friesca Pra Utami Dwi Juniati Dwi Juniati Dyastika, Patricia Agrivina Eko Saputra Erwin Gunawan, Monica Tiara Kristianto, Yosep Dwi Maharani, Wayan Malau, Evi Ervera Marcellinus Andhy Rudhito Marcellinus Andy Rudhito Marfiani Tapo, Maria Maria Suci Apriani Ruditho, M. Andy Santoso, Fransiska Duitasari Wijayanti Selestina Nahak St. Suwarsono Stanislaus, Amsikan Stephani Rangga Larasati Stephani Rangga Larasati, Stephani Rangga Surya, Francisca Yenuacrista Tiara Gunawan, Monica Turnip, Grace Usdinoari, Carolina Omega Putri Zacharias Angelius Krisnadi Wara Sabon