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All Journal Jurnal Infinity Kreano, Jurnal Matematika Kreatif-Inovatif AKSIOMA: Jurnal Program Studi Pendidikan Matematika Dinamisia: Jurnal Pengabdian Kepada Masyarakat Wahana : Tridarma Perguruan Tinggi Jurnal Cendekia : Jurnal Pendidikan Matematika ANARGYA: Jurnal Ilmiah Pendidikan Matematika Asimtot : Jurnal Kependidikan Matematika Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Range : Jurnal Pendidikan Matematika Bakti Cendana: Jurnal Pengabdian Masyarakat LOSARI: Jurnal Pengabdian Kepada Masyarakat Prima Abdika: Jurnal Pengabdian Masyarakat FARABI: Jurnal Matematika dan Pendidikan Matematika Leibniz: Jurnal Matematika Prioritas : Jurnal Pengabdian Kepada Masyarakat Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat Riemann : Research of Mathematics and Mathematics Education Jurnal Infinity Jurnal Pendidikan MIPA Senadika Abdimas Pedagogi: Jurnal Ilmiah Pengabdian kepada Masyarakat
Kristoforus Djawa Djong
Universitas Katolik Widya Mandira
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Public Health Social Sciences Transportation Other

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Belajar Matematika Sambil Bermain Bersama Siswa Sekolah Dasar dan Sekolah Menengah Lakapu, Meryani; Dosinaeng, Wilfridus Beda Nuba; Uskono, Irmina Veronika; Jagom, Yohanes Ovaritus; Leton, Samuel Igo; Djong, Kristoforus Djawa
LOSARI: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2023): Desember 2023
Publisher : LOSARI DIGITAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53860/losari.v5i2.171

Abstract

The purpose of this activity is to improve students' numeracy skills by using fun methods. This activity starts from situation analysis, activity design, socialization, implementation, and evaluation of activities. The result of this activity is that it can improve students' numeracy skills. Students are faster in solving the problems given. The team hopes that tutoring activities like this can be carried out sustainably in the future. Students gave a positive impression and requested that this teaching and learning activity be sustainable because it really helped them in understanding basic concepts
Pemahaman Konsep Siswa Sma Pada Materi Barisan Dan Deret Geometri Dos Santos, Maria Kristina; D. Djong, Kristoforus; J. Fernandez, Aloysius
PROSIDING SENADIKA : Seminar Nasional Akademik Vol 1 No 1 (2024): PROSIDING SEMINAR NASIONAL AKADEMIK (SENADIKA) 2024
Publisher : PROSIDING SENADIKA : Seminar Nasional Akademik

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Abstract

Pembelajaran matematika sangat penting dalam kehidupan sehari-hari dan perkembangan teknologi. Dalam dunia teknologi yang kita nikmati saat ini tidak terlepas dari kontribusi signifikan matematika. Oleh karena itu, matematika perlu untuk dipahami dan dipelajari sejak dini. Salah satu materi matematika yang mempunyai hubungan erat dengan kehidupan manusia sehari-hari adalah materi Barisan dan Deret Geometri. Penelitian ini bertujuan untuk mengetahui lebih mendalam mengenai pemahaman konsep siswa kelas XI SMA Negeri 4 Kupang pada materi barisan dan deret geometri. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif. Indikator pemahaman konsep yang digunakan dalam penelitian ini menurut Benyamin Bloom yaitu, penerjemahan, penafsiran, dan ekstrapolasi. Analisis data mencakup reduksi data, penyajian data, dan penarikan kesimpulan. Serta menggunakan triangulasi teknik untuk mengecek keabsahan data. Hasil penelitian pada siswa dengan kemampuan tinggi mampu memenuhi indikator pemahaman konsep yakni, indikator penerjemahan, penafsiran, dan ekstrapolasi. Sedangkan siswa dengan kemampuan sedang mampu memenuhi indikator penerjemahan dan penafsiran. Dan siswa dengan kemampuan rendah hanya mampu memenuhi indikator penerjemahan.
Analisis Hambatan Belajar (Learning Obstacle) Siswa Smp Pada Materi Peluang Meko, Maria Krisanti; Djong, Kristoforus Djawa; Leton, Samuel Igo
PROSIDING SENADIKA : Seminar Nasional Akademik Vol 1 No 1 (2024): PROSIDING SEMINAR NASIONAL AKADEMIK (SENADIKA) 2024
Publisher : PROSIDING SENADIKA : Seminar Nasional Akademik

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Abstract

Hambatan belajar merupakan masalah yang umum dijumpai dalam suatu proses pembelajaran matematika. Hambatan belajar bisa berasal dari dalam diri peserta didik maupun dari luar. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis hambatan belajar (learning obstacle) yang dialami siswa dalam mata pelajaran matematika pada materi peluang. Penelitian ini dilakukan di kelas VIII F SMPN 8 Kupang. Teknik pengumpulan data yang dilakukan adalah wawancara, observasi dan tes. Metode penelitian menggunakan metode penelitian kualitatif dengan proses didactical design research yang terdiri dari tiga tahapan yaitu prospective analysis (pra-observasi pembelajaran) metapedadidactic analysis (observasi pembelajaran) dan retrospective analysis (pasca observasi pembelajaran). Hasil penelitian ini menunjukkan dalam materi peluang terdapat hambatan ontogenik yang berkaitan dengan kesiapan mental peserta didik dalam mengikuti pembelajaran matematika, hambatan didaktis yang berkaitan dengan penyajian materi oleh guru, dan hambatan epistemologis yang berkaitan dengan kemampuan pemahaman konsep oleh peserta didik.
Analisis Kesulitan Belajar Siswa Pada Materi Volume Tabung Dan Luas Permukaan Tabung Kelas VIIA SMPK St. Agustinus Adisucipto Penfui Sasi, Maria Roswita; Leton, Samuel Igo; Djong, Kristoforus Djawa
PROSIDING SENADIKA : Seminar Nasional Akademik Vol 1 No 1 (2024): PROSIDING SEMINAR NASIONAL AKADEMIK (SENADIKA) 2024
Publisher : PROSIDING SENADIKA : Seminar Nasional Akademik

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Abstract

Penelitian ini bertujuan untuk mengetahui kemampuan pemahaman matematis siswa dalam menyelesaikan permasalahan yang berkaitan dengan volume tabung dan luas permukaan tabung. Populasi dalam pengamatan ini adalah kelas VII SMPK St. Agustinus Adisucipto Penfui, dengan sampel seluruh siswa siswi kelas VIIA yang berjumlah 30 siswa. Pengamatan ini merupakan pengamatan desain menggunakan kerangka didactical design research dengan menggunakan pendekatan kualitatif. Data dikumpulkan melalui tes, wawancara, dan observasi. Hasil pengamatan menunjukan bahwa siswa mengalami kesulitan dalam menyelesaikan soal yang diberikan. Hal ini dikarenakan siswa belum menguasai materi prasyarat dan konsep dasar matematika, yaitu perkalian dan pembagian. Siswa juga kurang teliti dalam menyelesaikan permasalahan yang berkaitan dengan volume tabung dan luas permukaan tabung. Oleh karena itu penguasaan materi prasyarat dan konsep dasar matematika sangatlah penting dikuasai oleh siswa agar memudahkan siswa dalam memahami materi volume tabung dan luas permukaan tabung.
Analisis Hambatan Belajar Siswa Melalui Desain Didaktis Materi Refleksi Terhadap Garis Y=X Dan Garis Y=-X Laka, Anastasia Lorensa; Djong, Kristoforus Djawa; Manoe Gawa, Maria Gracia; Leton, Samuel Igo
PROSIDING SENADIKA : Seminar Nasional Akademik Vol 1 No 1 (2024): PROSIDING SEMINAR NASIONAL AKADEMIK (SENADIKA) 2024
Publisher : PROSIDING SENADIKA : Seminar Nasional Akademik

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Abstract

Dalam pembelajaran matematika, siswa sering mengalami berbagai hambatan selama proses pembelajaran. Hal ini menjadikan siswa kurang mampu memahami materi yang ada, sehingga berdampak pada kemampuan matematis dan hasil belajar siswa. Oleh sebab itu hambatan-hambatan yang dialami siswa perlu dianalisis, agar kemudian dapat diberikan solusi untuk dapat mengurangi atau bahkan mengatasi hambatan yang dialami siswa. Penelitian ini bertujuan untuk menganalisis hambatan belajar yang dialami siswa dalam materi refleksi khususnya terhadap garis y=x dan terhadap garis y=-x serta memberikan solusi untuk mengatasi hambatan dalam pembelajaran yang dialami siswa. Penelitian ini dilakukan di SMA NEGERI 5 KUPANG kelas XI L terhadap 30 orang. Metode yang digunakan dalam penelitian ini adalah metode kualitatif berupa penelitian desain didaktis (didactical design research). Metode pengumpulan data yang digunakan yaitu wawancara, observasi dan tes. Hasil dari penelitian ini adalah suatu desain didaktis alternatif yang dapat digunakan dalam pembelajaran matematika, transformasi geometri materi refleksi terhadap garis dan garis .
Analisis Hambatan Belajar (Learning Obstacle) Pada Materi Koefisien Determinasi W.Sogen, Paskalia Gasela; Djong, Kristoforus Djawa; Leton, Samuel Igo
PROSIDING SENADIKA : Seminar Nasional Akademik Vol 1 No 1 (2024): PROSIDING SEMINAR NASIONAL AKADEMIK (SENADIKA) 2024
Publisher : PROSIDING SENADIKA : Seminar Nasional Akademik

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Abstract

Penelitian ini bertujuan untuk mengetahui hambatan belajar yang dialami oleh peserta didik dalam mempelajari mata pelajaran matematika materi koefisien determinasi. Penelitian ini menggunakan metode penelitian kualitatif dengan proses design didactical research. Metode pengumpulan data dalam penelitian ini menggunakan tes, wawancara dan observasi. Tes diberikan pada 31 orang siswa SMA kelas XI. Hasil penelitian menunjukkan bahwa terdapat hambatan belajar yang dialami oleh peserta didik kelas XIF pada mata pelajaran matematika materi koefisien determinasi. Bentuk hambatan belajar antara lain; 1) kurang kesiapan siswa dalam belajar; 2) kesulitan dalam menyelesaikan soal. Upaya dalam mengatasi hambatan belajar tersebut adalah salah satu diantaranya membangun konsep dasar matematika serta pemahaman matematika yang tepat dengan mengajarkan konsep, prinsip, dengan bahasa yang mudah bagi peserta didik.
Perancangan Awal LKPD Berbasis Problem Solving pada Materi Bentuk Aljabar di SMP Elie, Melkysedek; Djong, Kristoforus Djawa; Olla, Rinda
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI: Jurnal Matematika dan Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1266

Abstract

Mathematics instruction in Indonesia continues to encounter difficulties in cultivating students’ problem-solving abilities, particularly in topics related to algebraic expressions. This study seeks to examine instructional needs and to develop a problem-solving-oriented Student Worksheet (LKPD) tailored to algebraic form content. The research took place at SMP Negeri 6 Kupang Tengah Satu Atap, employing a Research and Development (R&D) methodology with a focus on the analysis and design phases of the ADDIE model. The participants were seventh-grade students. Data collection methods included classroom observations, teacher interviews, and document analysis. The analysis reveals that instruction remains predominantly teacher-centered, relying heavily on lectures, with low student engagement and a lack of supportive instructional media for fostering problem-solving. In response, a student worksheet was designed that incorporates Polya’s problem-solving framework and draws upon Kupang’s local context to enhance students’ problem-solving skills. This article reports on the needs assessment and the initial development of the worksheetTop of FormBottom of Form LKPD as the first step in developing contextual and meaningful teaching materials
Mapping the Layers of Understanding: An Analysis of Mathematical Comprehension in Literacy Questions using the Pirie-Kieren Theory Uskono, Irmina Veronika; Jagom, Yohanes Ovaritus; Djong, Kristoforus Djawa; Lakapu, Meryani; Dosinaeng, Wilridus Beda Nuba; Leton, Samuel Igo; Batarius, Patrisius; Mamulak, Natalia Magdalena Rafu; Guterres, Ilda
Jurnal Pendidikan MIPA Vol 26, No 4 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i4.pp2436-2452

Abstract

The Pirie-Kieren theory provides a dynamic framework that explains how mathematical understanding develops in layers, starting from initial introduction to reflection through eight layers of understanding. The eight layers of understanding are Primitive Knowing, Image Making, Image Having, Property Noticing, Formalizing, Observing, Structuring, and Inventising. This study aims to analyze students' mathematical understanding in solving literacy problems based on Pirie-Kieren's theory. This study is a qualitative descriptive study, involving 15 tenth-grade students at SMA Negeri 2 Kupang Barat, Indonesia. The research instruments used were literacy tests and interviews. In-depth interviews were conducted with student representatives who had reached each layer of understanding. Student representatives were selected based on purposive sampling. Data analysis in this study was carried out in four stages, namely data reduction, data presentation, conclusion drawing, and triangulation. The literacy test data were analyzed based on Pirie-Kieren's eight layers of understanding. The eight layers of understanding are. The results show that 73.33% of students reached the image having a layer of understanding, 13.33% reached the formalizing layer, 6.67% reached the image-making layer, and 6.67% reached only the primitive knowing layer. No students reached the observing, structuring, or inventing layers. The dominance of students in the image, having a level of understanding, shows that most students have only reached the initial stage. These results indicate that students' mathematical understanding of literacy questions remains at a basic level and has not developed into a reflective understanding.    Keywords: mathematical literacy, literacy questions, mathematical understanding, Pirie Kieren theory.
Local Wisdom Literacy: Promising Context Integration in Algebra Learning Samuel Igo Leton; Meryani Lakapu; Wilfridus Beda Nuba Dosinaeng; Kristoforus Djawa Djong; Nelly Fitriani
RANGE: Jurnal Pendidikan Matematika Vol. 7 No. 2 (2026): Range Januari 2026
Publisher : Pendidikan Matematika UNIMOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpm.v7i2.9923

Abstract

Indonesian students’ mathematical literacy skills, particularly in algebra, are still relatively low, as shown by the results of PISA 2022. A significant contributing factor is the limited relevance of teaching materials to students’ real-life contexts. This study introduces an innovative approach by developing algebra teaching materials based on local wisdom—referred to as local wisdom literacy—as a meaningful context for improving mathematical literacy among seventh-grade junior high school students. The novelty of this study lies in the integration of traditional Timorese cultural practices, such as weaving patterns, local measurement systems, and indigenous numerical reasoning, into formal algebra instruction. Using the ADDIE development model, this Research and Development (R&D) study produced culturally embedded materials that were validated by experts, with validity scores of 85.4% for content and 85% for assessment instruments. The materials were also considered highly practical (96.93% by students, 96% by teachers) and effective, as indicated by a moderate average N-Gain of 0.42 in student learning outcomes. In addition to improving conceptual understanding and mathematical literacy, the developed materials serve as a culturally responsive pedagogical model that is in line with the objectives of the Merdeka Curriculum and supports the preservation of local culture. This study provides a contextual and humanistic alternative in algebra learning, which offers pedagogical value and cultural significance
Pendalaman Materi dan Pelatihan Soal-Soal Olimpiade Bagi Guru SMP Yohanes Ovaritus Jagom; Kristoforus Djawa Djong; Meryani Lakapu; Samuel Igo Leton; Irmina Veronika Uskono; Wilfridus Beda Nuba Dosinaeng
KOMUNITA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 5 No 2 (2026): Mei
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/komunita.v5i2.543

Abstract

OSN is an activity that comprehensively develops a culture of learning, creativity, and motivation to achieve. However, the lack of knowledge among teachers and students about mathematics Olympiad questions has resulted in poor performance. The purpose of this community service activity is to equip teachers with basic skills and techniques in understanding Olympiad material so that they can guide students to acquire the skills to solve Olympiad questions. The methods used were lectures, discussions, and simulations. The results obtained from this activity were very effective, as demonstrated by an increase in the average score from 32.33 on the pretest to 85.67 on the posttest, indicating significant progress in mastery of concepts and basic skills in solving Olympiad questions. In addition to improving academic abilities, the results of the evaluation through questionnaires showed that participants were satisfied with the implementation of the activity, both in terms of material and delivery methods. Participants gained new insights and strategies in solving Olympic questions, which had an impact on increasing their confidence and motivation. Similar community service activities in the future need to be designed with a stronger focus on the basic understanding stage so that the results achieved can be more optimal and evenly distributed.
Co-Authors Agapitus Hendrikus Kaluge ALOYSIUS JOAKIM FERNANDEZ B.N. Dosinaneg, Wilfridus B.N.Dosinaeng, Wilfridus Barreto Maria Cindy Tuy, Elisabeth D Nai, Yustinus D. Kornelis, Marsen Damianus Siki Dos Santos, Maria Kristina Dosinaeng, Wilridus Beda Nuba Dosinaneg, Wilfridus Beda Nuba Elfrida Olo Mau Elie, Melkysedek F. Loma, Dorothea F. Mbari, Maria Ferdi F Kadafuk Fernandez, Michael Gawa, Maria Gracia Manoe Guterres, Ilda Hendrikus Kaluge, Agapitus Henrique de Fatima Marques I. Leton, Samuel Ilda Guterres Irmina Veronika Uskono J. Fernandez, Aloysisus J. Fernandez, Aloysius L. Morib, Poniam Laka, Anastasia Lorensa Lusi, Yutri Kormalina M. E. Nalle, Venci Manoe Gawa, Maria Gracia Maria Gracia Manoe Gawa Marta Hepo Lado Marthinus Klomang Meko, Maria Krisanti Melkysedek Elie Meryani Lakapu Molo, Matilde Niis Nai, Yustinus Didimus Natalia Magdalena Rafu Mamulak Nelly Fitriani Novel B. Molina Oktofianus Nggadas Ola, Stefanus Olla, Rinda Patrisius Batarius Petrus Gelang Rinda Olla Rofyanter Leoh Rowa, Yohana Rina S.P. Hun, Welis Samuel I. Leton Sasi, Maria Roswita Savio, Diogo Siki, Damianus V. Uskono, Irmina W.Sogen, Paskalia Gasela Wilfridus Beda Nuba Dosinaeng Wilfridus Beda Nuba Dosinaeng Yohana R. Rowa Yohana Rina Rowa Yohana Rina Rowa Yohanes Ovaritus Jagom Yuliarmawati Zendrato Yunico L. Maure Yustinus Didimus Nai Yutri Kormalina Lusi