Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

7.54

P-Index

This Author published in this journals

Deda, Yohanis Ndapa

Mathematics Education Department, Universita Timor, Indonesia

Author-ID : 931497

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 : 54 Documents Claim Missing Document

Claim Missing Document

Articles

2 3 4 5 6

Ethnomathematics exploration of Kaneka and Mariam tradional games in Nangapanda, Nusa Tenggara Timur culture Amsikan, Stanislaus; Deda, Yohanis Ndapa
Journal of Honai Math Vol. 6 No. 2 (2023): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v6i2.434

This research explores the mathematical concepts and cultural values in Kaneka (marbles) and Mariam (Patok Lele) traditional game. The type of research used is ethnographic research with a qualitative approach. The research instruments used consisted of main instruments and auxiliary instruments. The research location was Nangapanda sub district, with the research subject being a 58 years old traditional leader and 10 years old traditional game player. Data collection techniques in this study used technical triangulation by observing, interviewing and documenting the same sources. The data analysis technique used in this study refers to the Spradley design, namely domain analysis, taxonomic analysis, componential analysis, and cultural theme analysis. The results showed that first, the Kaneka traditional game contains the elements of ball and half ball shapes, distance, and counting points, including addition operations, and second, the Mariam traditional game contains the elements of cylinder shapes, comparison, direction, and calculating score including addition and multiplication operations

Ethnomathematical investigation of traditional games for cultural preservation in the Indonesia-Timor Leste border region Deda, Yohanis Ndapa; Disnawati, Hermina
Journal of Honai Math Vol. 7 No. 1 (2024): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v7i1.512

Traditional games offer children numerous benefits, including health, character development, and educational resources. However, these games have yet to be explored as learning tools for students with dyscalculia, particularly in border areas. This research aims to investigate the mathematical concepts embedded in traditional games as part of the local culture in the Indonesia-Timor Leste Border Area (ITLBA) community. Employing an exploratory approach with an ethnographic methodology, the study utilized documentation, observation, and interviews involving 13 children aged 7-14 years and five informants from the border area. Findings revealed mathematical concepts, including geometry and numerical concepts, within traditional games such as Galah Asin, Kelereng, Siki Doka, and Congklak. Moreover, these games instilled character values such as patriotism and sportsmanship. Children in the ITLBA region benefited from traditional games through social interaction, fostering kinship, cooperation, responsibility, and enhancing psychomotor skills. Ethnomathematics research on traditional games at ITLBA suggests utilizing these games as a platform for mathematics education, especially for students with disabilities. Leveraging classic games can help bridge the gap for students with disabilities, facilitating their numerical skills development within the educational context.

Didactical Situation of Learning Integer Material Based on Local Culture to Support Student Numeracy Literacy Yohanis Ndapa Deda; Hermina Disnawati; Otaget Daniel; Suhendra; Darhim
Jurnal Iqra' : Kajian Ilmu Pendidikan Vol. 9 No. 1 (2024): Jurnal Iqra' : Kajian Ilmu Pendidikan
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/ji.v9i1.4428

Didactically oriented research that considers the relationship between teachers, students and materials was vital. This research aimed to obtain an overview of the didactical situation in the learning process of whole number concepts as a basis for designing appropriate learning designs based on local culture for junior high school students in North Central Timor. The research method followed the stages of Didactical Design Research (DDR). The research instruments were observation sheets, interview guidelines, and documentation. Data analysis included prospective analysis, observation data, and post-observation data. The results revealed that student preparedness for learning posed a barrier to the otherwise smooth operation of instructor, student, and material interactions. Learning the concept of mixed operations of whole numbers was successful in terms of learning objectives achieved and learning that took place according to plan. The research concluded that the existence of the Topaze Effect and the Aging of Teaching Situations when learning whole number operations in the classroom. Didactical situated research contributes to define the scope and substance of didactics, focusing on the shared values and knowledge that underpin effective numbers instruction. Keywords: Didactical Situation, Integers, Local Culture, Numeracy Literacy

Mathematical concepts and cultural values in guest reception traditions: an ethnomathematic study of the Dawan Tribe Community on The Timor Island Bantaika, Aris; Son, Aloisius Loka; Ndapa Deda, Yohanis; Garcia-Garcia, Javier
International Journal of Didactic Mathematics in Distance Education Vol. 2 No. 1 (2025): ijdmde
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/ijdmde.v2i1.9702

The aim of this study is to explore mathematical concepts and cultural values in the reception traditions of the Dawan tribe (Atoni Meto). The research method used is qualitative research with an ethnographic approach. The research subjects were three informants and the research objects were music, dance and handicrafts. The instruments used in this research were observation, interviews and documentation. The results of the research show that (1) there are mathematical concepts in the arts of music, dance and handicrafts in the reception traditions of the Atoni Meto tribe, including; flat shapes (Square, Circle, Rectangle, Rhombus, Triangle), spatial shapes (Cone, Cylinder and Cuboid), the Concept of Lines and Sets, and (2) Cultural values contained in hitting the gong (Leku Sene) namely as a guide and a sign of joy, dancing (Sbo'ot) symbolizes joy, traditional speech (Natoni) as a form of respect and continuity of bond, repetition as a sign of brotherly bonds, eating betel-nut (M'pua) as unity and a sign of conveying goals and eating together as unity.

Development of Student Worksheets Using the Context of Local Wisdom on Integers and Fractions Deda, Yohanis Ndapa; Maifa, Talisadika
Mathematics Education Journal Vol. 15 No. 1 (2021): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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

The purpose of this research is to develop a valid, practical and effective junior high school mathematics worksheet. Local wisdom referred to in this study is a traditional food, namely Jagung Bose, Jagung Katemak, Ut Kono, and Laku Tobe, which have become a daily diet for the people of the Indonesia-Timor Leste border community on the Pulau Timor. This research is a kind of development research using the Tessmer formative evaluation model, which consists of two stages of development, namely the preliminary analysis stage and the formative evaluation stage. The subject of this research is the 9th-grade students of Taloeb Junior High School in the border area in 2020. The data collection techniques used include tests, learning outcomes, observation, and interviews. Experts have validated the development of student worksheets using the context of local traditional food wisdom with the results of assessments from material experts, media experts and linguists. Validated by Experts, Students Worksheets (SW) of maths included in the very good category and trial results have shown that the SW meets the practical criteria and has a potential effect on improving junior high school students' mathematics skills and learning outcomes. DOI: https://doi.org/10.22342/jpm.v.i.12824.71-82

Who Reaches the Top? Investigating Gender-Based Performance and Maximum Score Gaps in University Entrance Exams Disnawati, Hermina; Dwiningrum, Siti Irene Astuti; Deda, Yohanis Ndapa; Rashid, Salman; Dos Santos, Mariano
Journal of Mathematics Instruction, Social Research and Opinion Vol. 4 No. 2 (2025): June
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/misro.v4i2.524

Disparities in the academic readiness of first-year university students remain evident, continuing to challenge higher education systems, particularly when entrance assessments fail to reflect foundational competencies accurately. This study investigates whether gender-based differences exist in entrance exam performance and analyzes students' maximum scores to assess peak academic achievement in two core domains: English proficiency and Quantitative Knowledge. The research was conducted at a public university in East Nusa Tenggara, Indonesia, involving 1,186 students admitted through the independent selection pathway. A comparative quantitative approach was applied using descriptive statistics, Welch’s t-test, and boxplot visualizations in JASP 0.18.3 software. The results showed no statistically significant gender differences in either domain (English: p = 0.504, d = 0.040; Quantitative: p = 0.543, d = –0.036), with nearly identical mean scores and score variability. However, the maximum scores of 17/20 in English and 13/20 in Quantitative Knowledge were far below the full mark, indicating systemic gaps in academic preparedness and possible ceiling effects in test design. These findings support the need to redesign entrance assessments using Item Response Theory (IRT) and to implement bridging or matriculation programs. These interventions can help universities and policymakers ensure fairer and inclusive pathways to promote equitable access and success in higher education.

Development of Calculus Teaching Material: Context of Universitas Timor, Indonesia Deda, Yohanis Ndapa; Disnawati, Hermina
International Journal on Emerging Mathematics Education IJEME, Vol. 4 No. 2, September 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijeme.v4i2.15976

This research development aims to producing a valid, practical, and useful deferential calculus teaching material. The teaching material referred to this study is a student worksheet with a constructivism approach. Itapplied development research method with formative research type. It was conducted in two stages, namely preliminary analysis and formative evaluation stage.The results of the experts'validation stated that the teaching material developed has reached thecorrect category. The results of one-on-one trials class indicate that the developed the material can be accepted and be used. Furthermore, field trial results, which was conducted to see the effectiveness aspect, have met the criteria. In the other world, the current research has produceda valid, practical, and usefulderivative calculus teaching material that focuses on teaching material and its supporting components, including syllabus, and lesson plans.

Development of Android-Based Learning Media for High School Students in Indonesia: A Systematic Review of Literature Yohanis Ndapa Deda; Hermina Disnawati; Otaget Daniel; Rooselyna Ekawati
Jurnal Iqra' : Kajian Ilmu Pendidikan Vol. 8 No. 1 (2023): Jurnal Iqra' : Kajian Ilmu Pendidikan
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/ji.v8i1.3483

This study aims to comprehensively examine research on developing android-based learning media(ABLM) in Indonesia from 2015 to 2022. The research method used is the SLR to explore 32 articles from the accreted journals Sinta 1 and Sinta 2 by the Kemristekdikti RI with the keyword "Android" from 2015 to 2022. The results show that the trend of ABLM development research in Indonesia in the last eight years has continued to increase. The ADDIE model has been the most widely used research and development (RnD) method over the previous eight years. The questionnaire is the most dominant data collection tool used in Indonesia. The most researched subject related to research on developing ABLM in Indonesia is chemistry. The Indonesian Science Education Journal is the journal that has contributed the most to publishing ABLM development articles. The theory used in ABLM development research is problem-solving, critical thinking, and self-diagnosis skills. The study indicates that ABLM influences problem-solving (PS) abilities, critical thinking, and self-diagnosis. Meanwhile, a brief outline of the ABLM procedure for development for further study was presented in this paper Keywords: Developing Learning Media, Android-Based Learning, Learning Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/ji.v9i1.4428

Education Game based on Timor Local Wisdom as an Android-Based Mathematics Learning Media Suddin, Sulasri; Deda, Yohanis Ndapa
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 2 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i2.6958

The linkage of technology in the world of education today has developed rapidly. One of them is the development of mathematics learning media in the form of educational games. The purpose of this research is to develop an educational learning media game that is integrated into Timor local wisdom so that this media has its uniqueness to help students learn. Research on a fast educational game on mathematics based on an android smartphone was conducted at MTs Nurul Falah, Kefamenanu, NTT. The media was developed using software construct 2. The method used in this research is development research with the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The results of the validity test based on material experts, media experts, and teachers indicate that educational games with the theme of local wisdom as android-based mathematics learning media were included in the category of very feasible to use with an average validation of 4.33 and very feasible criteria. At this stage, a limited trial using a questionnaire showed that game education received a positive response to the use of game education media with an average percentage of 98.93%. These results indicate that the process of learning mathematics using this media can motivate and facilitate student learning compared to the learning that has been done. During the pandemic, COVID-19 media can be used as online-based learning media because students can easily download the application then the teacher controls the process.

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

Title

Found 54 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 54 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 54 Documents
Search