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Deda, Yohanis Ndapa

Mathematics Education Department, Universita Timor, Indonesia

Author-ID : 931497

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Research Trends on Lesson Study Based on Google Scholar and Scopus Database: a Bibliometric Analysis Deda, Yohanis Ndapa; Disnawati, Hermina; Daniel, Otaget
Jurnal VARIDIKA Volume 35, No 1 June 2023
Publisher : Faculty of Teacher Training and Education, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/varidika.v1i1.22663

This study investigates lesson study research trends through bibliometric analysis on widely distributed Google Scholar (GS) and Scopus databases. We reviewed 997 papers from GS and 200 documents from the Scopus database searched using Harzing's Publish on May 6 2023. A descriptive study approach was used to investigate the data. The result of this study is that the number of lesson study documents has increased over the last decade (2012-2022). The most productive author based on GS is R Huang from the United States, and the full author based on Scopus is E. Saito from Australia. While the prominent authors based on the highest citations are Fernandez Yoshida, based on GS, and Dudley, with the highest citations based on Scopus. The “International Journal for Lesson and Learning Studies” in the last decade is the most source of lesson study documents. Based on VosViewer visualization, Rosa is the author who has the most co-authorship papers and total link strength. The VosViewer displays four clusters related to lesson study: community, context, observation, and participation. Our strong recommendations regarding this study are lesson study research related to literacy, numeracy, and mathematical abilities. The results can assist relevant researchers in understanding trends in lesson study research and recommend guidelines for other studies.

Bibliometric Analysis of Higher-Order Thinking Skills Based on Google Scholar, Crossref, and Scopus Deda, Yohanis Ndapa
Jurnal VARIDIKA Volume 35, No 2 December 2023
Publisher : Faculty of Teacher Training and Education, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/varidika.v35i2.23223

Higher-order thinking (HOT) skills are needed to analyze, evaluate, and solve problems. HOTS is an essential ability that students must have as a provision for the future and the 21st Century. However, no bibliometric research has linked Crossref, Scopus, and Google Scholar (GS) preferences on Harzing's Publish or Perish (PoP) software. This research aims to identify search preferences in PoP software version 8.9.4554.8721. The sample critical phrases entered in the preference menu are Higher-order thinking skills (HOTs) with a time range from 2018 to 2023. The library study research method used is bibliometric analysis. Metadata in the form of RIS/Refmanager files obtained from PoP is used to visualize data through VosViewer software. CSV data is used to identify top authors and top sources based on each preference. The phrases or keywords used were "HOTs," Mathematics" in GS, Crossref, and Scopus preferences. The results show four clusters of HOTS: ability, student, effect, and category. The top authors cited in Scopus are Hadi et al., Hobri et al. in GS, and Ichsan et al. in Crossref. HOTS needs to be researched more from various perspectives and methods. We recommend that future HOTS research be linked to real life to bridge the quite abstract concept of HOTS.

Eksplorasi Etnomatematika Permainan Tradisional Patok Lele di Insana Barat Pulau Timor Bengu, Dede Benyamin Erfin; Deda, Yohanis Ndapa; Mamoh, Oktovianus
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 8 No. 3 (2023): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.8.3.2023.309-321

Riset ini bermaksud guna mengekplorasi etnomatematika di Mamsena, Dusun Letneo Selatan, Kecamatan Insana Barat, Kabupaten Timor Tengah Utara, Pulau Timor. Tipe Riset yang dipakai merupakan riset kualitatif dengan pendekatan Etnografi. Subjek riset yakni orang yang memainkan game patok lele( Lote) berjumlah 8 anak laki–laki serta wanita yang berumur 7 sampai 14 tahun, 1 orang berusia yang berumur 50 tahun, serta 1 orang guru Matematika selaku informan. Metode pengumpulan informasi yang di maanfaatkan merupakan prinsip pengamatan, prinsip tanya jawab serta pengarsipan. Metode riset lewat langkah perencanaan, penerapan riset adan akhir riset. Metode analisa informasi yang di maanfaatkan merupakan Analisa Domain, Analisa Taksonomi, Analisa Komponensial, serta Analisa Tema Budaya. Hasil analisi informasi yang didapat peneliti yakni peneliti menemukan kalau pada kegiatan patok lele di Dusun Letneo Selatan, Kecamatan Insana Barat, Kabupaten Timor Tengah Utara( TTU) Pulau Timor ada teori matematika yakni skema bangun ruang berbentuk selinder serta separuh bola, skema bangun latar beupa persegi jauh serta setengah lingkaran, skema jarak, teori operasi jumlah angka beupa penghitungan serta perkalian dan teori probabilitas.

Ethnomathematical perspectives on Galah Asin: Investigating the mathematical and cultural significance of a traditional game Deda, Yohanis Ndapa; Rosa, Milton; Disnawati, Hermina; Tamur, Maximus
Jurnal Elemen Vol 10 No 3 (2024): September
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v10i3.25467

Traditional game (TG) Galah Asin has been played for generations—a game cultivated from generation to generation for Timor Tengah Selatan residents, Indonesia-Timor Leste Border Area. People must be aware that Galah Asin's TG and activities contain mathematics concepts that can be employed in math study. This study examines ethnomathematics in Galah Asin, a conventional game in Mnelalete Village, West Amanuban District, South Central Timor Regency, NTT Province, Indonesia. An ethnographic approach was used to investigate the data. Ethnomathematics emphasizes understanding a culture's concepts, methods, and practices from its members' perspectives. The study collects data through observation, interviews, and documentation. This study analyzed data using taxonomy, domain, componential, and cultural theme analysis. The study results found flat, translational, reflecting, line, angel, and congruence geometry ideas in the game arena, body movement, and player position of Galah Asin. Galah Asin also has addition, subtraction, multiplication, and division in gameplay. The implication of exploring ethnomathematics study is that understanding cultural activities can be integrated into school mathematics instruction. In addition, the ethnomathematics exploration of TG impacts the preservation of local culture.

Comprehending Relations and Functions: Introducing and Demonstrating Papan Resi Teaching Aid Siahaan, Meiva Marthaulina Lestari; Hijriani, Lailin; Maifa, Talisadika; Laja, Yosepha Patricia Wua; Deda, Yohanis Ndapa
Smart Society Vol 2, No 2 (2022): December 2022
Publisher : FOUNDAE (Foundation of Advanced Education)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/smartsociety.v2i2.103

The teachers need help to convey the differences between relations and functions and to make concrete examples. The purpose of the community service team is to help students find and comprehend the theory and concept about relations and functions material for grade 8 by introducing and demonstrating the Papan Resi visual aid.The service held in SMPK Aloysius Niki-Niki, Timor Tengah Utara District, Nusa Tenggara Timur. The service method is based on action research: planning, action, observation, and reflection. The data are collected based on the audiences' observation sheets and response sheets. Data analysis used data triangulation. The results of this community service are that introducing and demonstrating Papan Resi could be beneficial for increasing students' comprehension of SMPK Aloysius Niki-Niki. The constructivist situation influences it, and the service needs to be held for other teaching aids

Global trend of ethnomathematics studies of the last decade: A bibliometric analysis Yohanis Ndapa Deda; Hermina Disnawati; Maximus Tamur; Milton Rosa
Jurnal Infinity Vol 13 No 1 (2024): VOLUME 13, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v13i1.p233-250

This study aims to investigate ethnomathematics research trends through bibliometric analysis on widely distributed Google Scholar (GS) and Scopus databases. One thousand seventy-seven papers were reviewed from GS and Scopus databases searched using Harzing's Publish on 9 January 2023. A descriptive study approach was used to investigate the data. The result of this study is that the number of ethnomathematics studies has increased over the last decade (2012-2022). The most productive author based on GS is Rosa from Brazil, and the full author based on Scopus is Widada from Indonesia. The principal authors with the highest citations are Ascher, based on GS, and Muhtadi, based on Scopus, with the highest citations. The Journal of Physics: Conference Series (JPCS) in the last decade is the most crucial source of ethnomathematics documents. Based on VosViewer visualization, Rosa is the author who has the most co-authorship papers and total link strength. The VosViewer displays four clusters related to Ethnomathematics: mathematics education, skills, ethnomathematics studies, and geometry. Our strong recommendations regarding this study are ethnomathematics research related to literacy, numeracy, technocracy, and mathematical abilities. The results can assist relevant researchers in understanding trends in ethnomathematics research and recommend guidelines for other studies.

Tren Global Stunting dalam Satu Dekade Terakhir: Analisis Bibliometrik: Global Trend of Stunting in The Last Decade: A Bibliometric Analysis Deda, Yohanis Ndapa; Nahak, Maria Paula Marla; Pala, Aplonia
Amerta Nutrition Vol. 8 No. 4 (2024): AMERTA NUTRITION (Bilingual Edition)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/amnt.v8i4.2024.654-664

Background: Stunting is a growth and development problem in children caused by chronic malnutrition and disease. There is no bibliometric analysis related to stunting globally and simultaneously using metadata from GS (Google Scholar) and Scopus on Vosviewer visualization from 2012 to 2022. Objectives: To study the trends in research on stunting through a bibliometric analysis of the widely used GS and Scopus databases. Methods: This method was used to investigate and evaluate a large amount of scientific data on stunting, revealing the intricacies of the evolution and novelties related to stunting over a decade (2012-2022). Discussions: Stunting studies have increased over the last decade (2012-2022). The authors most cited based on the Scopus database are Prendergast & Humphrey. The authors most cited based on the GS database is de Onis & Branca. The productive author based on GS is T Siswati from Indonesia. The top numbers one influential author based on Scopus are M. De Onis and P. Svefors. The total number one source article based on Scopus and GS is Plos One. PH Nguyen, P Menon, and VM Aguayo are the three authors who have co-authored the most documents related to stunting in the past decade based on VosViewer visualizations. Based on the results of the VosViewer visualization, six significant clusters were also discussed: review, Inequality, Ethiopia, anemia, trial, and Infant. Conclusions: Stunting prevention in areas or countries with acute stunting needs more detail from governments and WHO. We recommend that future research on the pattern of appropriate policies to prevent stunting be carried out.

Hubungan Motif Kain Tenun Masyarakat Suku Dawan – Timor dengan Matematika Sekolah Deda, Yohanis Ndapa; Disnawati, Hermina
Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya 2017: Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.196 KB)

Motif kain tenun masyarakat suku dawan merupakan motif warisan nenek moyang yang terus dilestarikan. Dalam makalah ini hanya membahas tiga motif kain tenun, yaitu Motif Buna, Motif Sotis, dan Motif Futus. Motif kain tenun pada masyarakat suku dawan dapat berfungsi sebagai pengenal asal-usul seseorang yang mengenakan kain tenun tersebut. Kain tenun biasanya digunakan pada ritus-ritus adat, penjemputan tamu, dan acara kematian. Tujuan dari penelitian ini adalah untuk menjelaskan hubungan ketiga motif kain tenun dengan konsep matematika sekolah dasar dan menengah. Metode yang digunakan adalah metode deskriptif kualitatif. Hasil penelitian menunjukkan bahwa Motif Buna, Motif Sotis, dan Motif Futus memiliki hubungan dengan pembelajaran konsep geometri yang dipelajari di sekolah dasar dan sekolah menengah, seperti pengenalan konsep segi empat , garis lurus, dan konsep pencerminan.

PENGEMBANGAN MODUL PROYEK PENGUATAN PROFIL PELAJAR PANCASILA: STUDI LITERATUR Tae, Rut; Ndapa Deda, Yohanis; Disnawati, Hermina
Asimtot : Jurnal Kependidikan Matematika Vol 6 No 01 (2024): Asimtot: Jurnal Kependidikan Matematika | Juni 2024 - November 2024
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/asimtot.v6i01.4018

Penelitian ini bertujuan untuk menjawab pertanyaan penelitian tentang jenjang, tema, dan dimensi yang digunakan dalam proyek penguasaan profil pelajar pancasila di sekolah-sekolah dan untuk menjelaskan bagaimana proyek tersebut berkembang berdasarkan kajian pustaka. Penelitian ini menggunakan Study Literatur, yang mencakup pembuatan pertanyaan penelitian, pengembangan strategi pencarian (mencari artikel atau literatur yang sesuai dengan tema penelitian), penetapan kriteria (menggunakan kriteria inklusif untuk memilih artikel), analisis dan evaluasi data (menganalisis dan mengevaluasi data), dan penafsiran (melaporkan hasil penelitian). Sebanyak 24 artikel telah ditemukan. Hasil penelitian menunjukkan bahwa proyek dilakukan untuk meningkatkan profil siswa pancasila dari TK hingga SMA. Tema yang digunakan termasuk Kearifan Lokal, Gaya Hidup Berkelanjutan, Kewirausahaan, dan Suatu Demokrasi. Dimensi yang digunakan termasuk Beriman dan Bertakwa kepada Tuhan Yang Maha Esa dan Berakhlak Mulia, Gotong Royong, Kreatif, Mandiri, Bernalar Kritis, Berkebhinekaan Global, dan Cinta Tanah Air.

Research trend on dyscalculia by bibliometric analysis during 2017-2022 Deda, Yohanis Ndapa; Disnawati, Hermina; Ekawati, Rooselyna; Suprapto, Nadi
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 1: February 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i1.25992

Dyscalculia is the inability to perform simple numerical calculations in everyday life. However, no one has researched this topic worldwide in about two years. This study aimed to investigate the research trends on dyscalculia through bibliometric studies and research issues related to dyscalculia in the Scopus database starting 2017 to October 2022. The sample consisted of 536 total documents. The results showed that scientific publications on dyscalculia fluctuated. In the next five years, its movements cannot be predicted. The highest number of document types is articles, which is 369. The number of cross-border documents from 2017 to 2022 is in the United States, as many as 75 papers, and in Italy, 74 copies. These two countries are more dominant on the topic of dyscalculia. Furthermore, 536 documents comprising 94.4% of articles were used in English. In general, in research on dyscalculia, researchers produce four out of five significant clusters: patient, approach, task, and grade. However, topics related to dyscalculia and mathematics often studied are deficit students, deficit addition and subtraction, mathematics difficulty, instruction, and primary school. The results can be used to shed light on developing tendencies in dyscalculia investigations and suggest directions for future studies.

Co-Authors admin pythagoras, admin Anastasia N. Ernesta Manbait Ando Missa Ando Missa Andreas Roberto Kasa Bantaika, Aris Bees, Nene Lodiana Bengu, Dede Benyamin Erfin Daniel, Otaget Darhim Delti Yulita Donisius Uskono Dos Santos, Mariano Esterlin Kusi Farly O.Haning Fitriani Fitriani Flaviana M.V Taus Florida Owa García-García, Javier Heldigardis Kolo Hermina Disnawati Hermina Disnawati Hermina Disnawati Hermina Disnawati, Hermina Hijriani, Lailin Juweni T. Tefi Kou, Dominikus Maifa, Talisadika Serrisanti Marchy Pallo Maria Biamsasi Mauk, Advensius Fitalis Merlina Sopbaba Milton Rosa Nadi Suprapto Nahak, Maria Paula Marla Oktovianus Mamoh Otaget Daniel Pala, Aplonia Patrisius Nulle Rashid, Salman Ratu, Astry H Rooselyna Ekawati Rosa, Milton Selestina Nahak Siahaan, Meiva Marthaulina Lestari Siti Irene Astuti Dwiningrum Stanislaus Amsikan Suhendra Sulasri Suddin Tae, Rut Talan, Nelciana Tamur, Maximus Trifosa Alnabe, Ayu Wua Laja, Yosepha Patricia Yoseph Pius Kurniawan Kelen

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