Article Per Year (5 Year)
p-Index From 2020 - 2025
7.685
P-Index
This Author published in this journals
All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pendidikan Matematika Jurnal Infinity Jurnal Karya Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Varidika Jurnal Elemen Journal of Research and Advances in Mathematics Education Al-Jabar : Jurnal Pendidikan Matematika JURNAL IQRA´ IJHCM (International Journal of Human Capital Management) Jurnal Sains Dan Teknologi (SAINTEKBU) Journal of Honai Math IRJE (Indonesian Research Journal in Education) International Journal on Emerging Mathematics Education Amerta Nutrition Jurnal Pendidikan Matematika (Jupitek) Jurnal PTK dan Pendidikan JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) MES: Journal of Mathematics Education and Science Asimtot : Jurnal Kependidikan Matematika Jurnal Magister Pendidikan Matematika (JUMADIKA) Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika Range : Jurnal Pendidikan Matematika Bakti Cendana: Jurnal Pengabdian Masyarakat Primatika : Jurnal Pendidikan Matematika Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Jurnal Mandala Pengabdian Masyarakat International Journal of Research in Education (IJRE) MATH-EDU: Jurnal Ilmu Pendidikan Matematika Bulletin of Pedagogical Research Parta: Jurnal Pengabdian Kepada Masyarakat Smart Society: Community Service and Empowerment Journal Indonesian Journal Of Educational Research and Review Journal of Mathematics Instruction, Social Research and Opinion Jurnal Pengabdian Sains dan Humaniora Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Jurnal Masyarakat Mengabdi Nusantara International Journal of Trends in Mathematics Education Research (IJTMER) International Journal of Didactic Mathematics in Distance Education Jurnal Infinity Mathematics Education Journal
Deda, Yohanis Ndapa
Mathematics Education Department, Universita Timor, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 56 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 56 Documents
Search

 2   3   4   5   6 
EFEKTIVITAS PEMBELAJARAN MATEMATIKA REALISTIK DI TINJAU DARI KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA SMP Mauk, Advensius Fitalis; Amsikan, Stanislaus; Deda, Yohanis Ndapa
Jurnal Pendidikan Matematika (JUPITEK) Vol 4 No 1 (2021): 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/jupitekvol4iss1pp14-20

Abstract

Penelitian ini bertujuan untuk mengetahui keefektifan Pembelajaran Matematika Realistik (PMR) ditinjau dari kemampuan pemecahan masalah siswa kelas VII SMP. Jenis penelitian yang digunakan adalah penelitian eksperimen semu (quasi eksperiment). Teknik pengumpulan data dengan menggunakan metode observasi dan metode tes. Data hasil penelitian dianalisis menggunakan uji Z kolmogorov-Smirnov dengan bantuan SPSS. Hasil penelitian menunjukan bahwa ada keefektifan pendekatan pembelajaran matematika realistik ditinjau dari kemampuan pemecahan masalah matematika siswa SMP. Berdasarkan tabel output “Group Statistics” diketahui jumlah data kemampuan pemecahan masalah kelas eksperimen adalah 15 siswa dalam kelas control dan 15 siswa yang dilakukan secara konvensional. Nilai rata-rata kemampuan pemecahan masalah matematika siswa untuk kelompok eksperimen adalah 78,27 dan kelompok kontrol adalah 70,07. Penafsiran tabel output Independent Samples Test berpedoman pada nilai yang terdapat dalam tabel “Equal variances assusmed”. Berdasarkan tabel output “Independent Samples Test” pada bagian “Equal variances assumed” diketahui nilai Sig. (2-tailed) sebesar 0,01 < 0,05, maka sebagaimana dasar pengambilan keputusan dalam uji independent sample t test dapat disimpulkan bahwa Ho ditolak dan Ha diterima. Dengan demikian dapat disimpulkan bahwa pendekatan Pembelajaran Matematika Realistik (PMR) lebih efektif ditinjau dari kemampuan pemecahan masalah matematika siswa SMP
MISKONSEPSI MAHASISWA PADA MATERI HIMPUNAN: ANALISIS MENGGUNAKAN KRITERIA CERTAINTY OF RESPONSE INDEX Disnawati, Hermina; Deda, Yohanis Ndapa
Jurnal Pendidikan Matematika (JUPITEK) Vol 4 No 2 (2021): 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/jupitekvol4iss2pp95-102

Abstract

This research aims to find out the misconceptions of students about the concept of the set using certainty of response index (CRI) indicators. The research subjects consisted of 89 students who programmed the Introduction to Basic Mathematics (PDM) course. The research method used is qualitative descriptive. A written test consisting of 4 reasoned multiple choice and descriptive questions were used to collect research data. The results showed that based on CRI criteria, for problem number 1 about the differences of set and not sets, there were 39% of students experiencing misconceptions, 33% of students do not know the concept and 28% of students who know the concept correctly. In question number 2, the questions about three ways of presenting a set of natural, whole, prime and integers numbers, it was found that 12% of students experienced misconceptions and 76% of students did not know the concept because of guessing and lack of knowledge, the remaining 11% of students understand the concept very well. For problem number 3, about the operation of the set found that 30% of students experienced misconceptions, 45% did not know the concept and the remaining 24% understood the concept correctly. Furthermore, for problem number 4, the set operation story was obtained the result that of 19% of students who took the test experienced misconceptions, 57% of students did not understand the concept and only 24% of students understood the concept correctly. In other words, of the 4 questions that were tested on students, questions number 1 and 3 were mostly found by students experiencing misconceptions. Although problem number 2, it was found that at least students experienced misconspection but in this questions almost 80% of students did not know the concept correctly
EFEKTIFITAS PENGGUNAAN MEDIA PEMBELAJARAN MATEMATIKA BERBAHAN SAMPAH UNTUK MENGURANGI LEARNING LOSS AKIBAT PANDEMI COVID-19 Deda, Yohanis Ndapa; Disnawati, Hermina
Jurnal Magister Pendidikan Matematika (JUMADIKA) Vol 4 No 2 (2022): Jurnal Magister Pendidikan Matematika (JUMADIKA)
Publisher : Prodi Magister Pendidikan Matematika Pascasarjana Universitas Pattimura Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jumadikavol4iss2year2022page37-42

Abstract

During the Covid-19 pandemic, there was a change in the education system, namely regular or face-to-face learning suddenly changed to learning from home (BDR). One of the difficulties is the change in the direct learning climate to online learning, which is done individually. This difficulty resulted in learning loss for students. Learning loss has a long-term negative impact, namely reduced student academic achievement and cognitive skills. Therefore, it is necessary to choose learning media to minimize learning loss due to BDR during the Covid-19 pandemic. One learning media that is suitable for the conditions of the learning community in Kefamenanu City is the Mathematics learning media made from Waste (MPMBS), namely positive and negative charges. This study aims to reduce learning loss for students in the learning community in the city of Kefamenanu. The type of research is an experimental, pre-Experimental Design, namely a One-Group Pretest-Posttest with 11 students in the Sunday school community at one of the GMIT Churches in Kefamenanu. Data collection methods are tests, questionnaires and documentation. The data analysis techniques are descriptive statistical analysis, N-Gain analysis and inferential analysis. The results showed that the average value of the pretest was 33, and the average value of the posttest was 57.17. There was an increase after the students were given the learning treatment using MPMBS with a charge of 27.57 and an average N-gain of 0.64, including the medium category. Based on the results of this study, it can be concluded that the use of waste-based MPMBS in learning integer operations can improve learning achievement while reducing learning loss in the community of Sunday school children in Kefemenanu. The next plan that will be done is to analyze the level of motivation of respondents to the use of MPMBS
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

Abstract

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

Abstract

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.
Efektivitas “Puzzle Rumah Perkalian” dalam Menunjang Konsep Matematika Dasar Murid Slow Learner di Kawasan Perbatasan Ndapa Deda, Yohanis; Disnawati, Hermina; Roberto Kasa , Andreas; Owa , Florida; Kusi , Esterlin
Parta: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2023)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/parta.v4i2.4592

Abstract

Kegiatan ini didasari learning loss pada saat Covid-19 yang berdampak munculnya murid slow learner akibat adanya kebijakan belajar dari rumah. Tujuan kegiatan ini adalah untuk menguji tingkat efektivitas “Puzzle Rumah Perkalian” dalam menunjang konsep matematika dasar murid slow leraner di Kawasan Perbatasan Darat Indonesia dengan Republik Demokratik Timor Leste. Metode yang digunakan adalah metode kuantitatif dengan jenis eksperimen, yaitu One-Group Pretest-Posttest. Tahapan pelaksanaan penelitian ini dimulai dari perencanaan, pelaksanaan pre test, eksperimen dan postest. Jumlah murid yang terlibat adalah 18 orang siswa sekolah dasar kelas 4. Metode pengumpulan informasi merupakan tes, serta dokumentasi. Metode analisa data yang dipakai merupakan analisa statistik deskriptif, analisa N- Gain serta analisa inferensial. Hasil riset membuktikan kalau nilai rerata pretest merupakan 40,51 serta nilai rerata post test merupakan 66,29. Nyata kalau terjadi kenaikan sehabis peserta didik dikasihkan perlakuan Pembelajaran matematika memakai“ Puzzle Rumah Perkalian” sebesar 25,78 serta rerata N-gain ialah 0,43 termasuk kategori sedang. Bersumber pada hasil studi ini, bisa disimpulkan kalau aplikasi “Puzzle Rumah Perkalian” pada pembelajaran matematika materi operasi bilangan bulat khususnya pada operasi perkalian bisa mendukung matematika dasar anak didik slow learner di Area Perbatasan. Konsep berikutnya yang hendak digarap merupakan meningkatkan alat pembelajaran matematika yang sesuai buat anak didik slow learner di Area Perbatasan.  
Co-Authors admin pythagoras, admin Anastasia N. Ernesta Manbait Ando Missa Ando Missa Bantaika, Aris Bees, Nene Lodiana Bengu, Dede Benyamin Erfin Daniel, Otaget Darhim Delti Yulita Donisius Uskono Dos Santos, Mariano Farly O.Haning Fitriani Fitriani Flaviana M.V Taus García-García, Javier Heldigardis Kolo Hermina Disnawati Hermina Disnawati Hermina Disnawati, Hermina Hijriani, Lailin Juweni T. Tefi Kou, Dominikus Kusi , Esterlin Maifa, Talisadika Serrisanti Marchy Pallo Maria Biamsasi Mauk, Advensius Fitalis Merlina Sopbaba Milton Rosa Nadi Suprapto Nahak, Maria Paula Marla Oktovianus Mamoh Otaget Daniel Owa , Florida Pala, Aplonia Patrisius Nulle Rashid, Salman Ratu, Astry H Roberto Kasa , Andreas 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