Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

12.545

P-Index

This Author published in this journals

Simarmata, Justin Eduardo

Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Timor, Indonesia

Author-ID : 1527235

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

Published : 103 Documents Claim Missing Document

Claim Missing Document

Articles

6 7 8 9 10

Review of Pedagogical Knowledge Through the Use of GeoGebra for Junior High School Students in Improving Learning Outcomes on Straight Line Equation Material Nifu, Martha Marsela; Hijriani, Lailin; Simarmata, Justin Eduardo
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 1 (2025): 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.v10i1.6783

The purpose of this study was to determine that the teacher's Pedagogical Knowledge in utilizing technology by using the GeoGebra application can improve the learning outcomes of junior high school students on the material of straight line equations. This type of research is Classroom Action Research (PTK) conducted in two cycles with the success indicator of 70% classical completeness. The research instruments used include observation sheets and test question sheets, with data collection techniques in the form of written tests and observations. The subjects of this study were students of class VIII A of St. Aloysius Niki-Niki Catholic Junior High School in the academic year 2023/2024, totaling 28 students. The results showed that through Pedagogical Knowledge of teachers in the utilization of technology by using the GeoGebra application can improve the learning outcomes of junior high school students on the material of straight line equations.

Students' Ability to Understand Concepts in Solving Problems of Similarity and Congruence Seko, Herbert; Nahak, Selestina; Simarmata, Justin Eduardo; Atencia, Bryant Bennet D
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 1 (2025): 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.v10i1.7327

This study employs a qualitative descriptive approach aimed at evaluating students' conceptual understanding in solving similarity and congruence problems at SMP Negeri Oelneke. The subjects of the study were ninth-grade students. The results of the conceptual understanding test show that 29.4% of the students fall into the low ability category, 41.1% into the moderate ability category, and 29.4% into the high ability category. These results indicate that the majority of students at SMP Negeri Oelneke demonstrate a moderate level of conceptual understanding. The students face difficulties in solving the problems due to a lack of understanding of the given problems, which prevents them from providing optimal responses.

Pengaruh Kemandirian Belajar terhadap Hasil Belajar Matematika Siswa Kelas XI SMA Negeri Taekas Menggunakan Analisis Structural Equation Modeling (SEM) Agnes L A Halla; Simarmata, Justin Eduardo; Yohanes Jefrianus Kehi
Trigonometri: Jurnal Matematika Vol. 2 No. 2 (2025): Edisi Juli
Publisher : Lppm Universitas Nurul Hud

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/xmw4tc87

Hasil belajar matematika siswa yang rendah masih menjadi tantangan dalam pendidikan, terutama pada mata pelajaran yang menuntut kemampuan pemecahan masalah. Salah satu faktor yang diduga mempengaruhi hasil belajar adalah kemandirian belajar, yakni kemampuan siswa untuk mengatur, mengontrol, dan memotivasi diri tanpa bergantung pada bimbingan eksternal. Penelitian ini bertujuan untuk menganalisis pengaruh kemandirian belajar terhadap hasil belajar matematika pada jenjang pendidikan SMA. Penelitian ini dilakukan dengan metode kuantitatif menggunakan desain ex-post facto dan pendekatan Structural Equation Modeling (SEM) untuk menganalisis pengaruh kemandirian belajar terhadap hasil belajar matematika. Dalam penelitian ini, data diperoleh dari 170 siswa kelas XI SMA Negeri Taekas Tahun ajaran 2024/2025. Hasil analisis menunjukkan bahwa variabel kemandirian belajar memiliki pengaruh signifikan terhadap hasil belajar matematika, dengan koefisien determinasi sebesar 58%. Hal ini berarti bahwa variabel kemandirian belajar berkontribusi sebesar 58% terhadap variasi hasil belajar matematika siswa kelas XI SMA Negeri Taekas.

An Identification of Conceptual and Procedural Understanding: Study on Preservice Secondary Mathematics Teacher Klau, Kondradus Yohanes; Siahaan, Meiva Marthaulina Lestari; Simarmata, Justin Eduardo
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.v11i2.7310

Preservice mathematics teachers (PSMTs) need to master teaching material besides pedagogical competence. This knowledge is a combination of conceptual and procedural knowledge. Teachers should possess the ability to explain a concept, the reason for the concepts used, and the relationship among several concepts clearly and effectively to identify why the concept is used. This study aimed to identify the conceptual and procedural knowledge of PSMTs in Linear Algebra courses. Data collection was carried out through tests and interviews. The interview was conducted with several participants to clarify their test answers. The participants' interview answers revealed that they had difficulty in choosing the proper concept answering modified questions. Also, the participants tried to answer the question using a procedural approach. According to the findings, it is vital to construct appropriate teaching materials appropriate for the learning objective and material map concept.

The Implementation of Structural Equation Modeling (SEM) on Academic Ability and Family Environment in Twelfth-Grade Students' Selecting of Public Universities Taena, Vinsensia Gerosa; Simarmata, Justin Eduardo; Delvion, Eduardus Beo Seso
Fraction: Jurnal Teori dan Terapan Matematika Vol. 5 No. 1 (2025): Fraction: Jurnal Teori dan Terapan Matematika
Publisher : Jurusan Matematika, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/fraction.v5i1.89

Public universities are the primary institutions chosen by students who have recently completed their secondary education to continue their studies. This decision is influenced by both internal and external factors. Several factors that affect the decision to pursue further education at a public university include academic ability and the family environment. The aim of this study is to identify the structural model between these variables using the Structural Equation Modeling (SEM) method. The data for this study were collected from 203 twelfth-grade students of Taekas Public High School in the 2023/2024 academic year. The analysis results indicate that the influence of the latent variable of academic ability on the interest in selecting a public university, based on the path coefficient value, is 0.68. This implies that the better the student's academic ability, the greater their interest in selecting a public university. The influence of the latent variable of family environment on the interest in selecting a public university, based on the path coefficient value, is 0.78. This suggests that the better the student's family environment, the greater their interest in selecting a public university.

APLIKASI ALGORITMA GENETIKA DALAM PENJADWALAN MATA KULIAH Mone, Ferdinandus; Simarmata, Justin Eduardo
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 15 No 4 (2021): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Making a class schedule becomes problem and takes a long time because of several obstacles such as the lack of lecture rooms, the lack of teaching staff, and the high of courses available in one semester. This study aims to apply genetic algorithms in making class schedules to facilitate the process of making class schedules. The method used is the waterfall method with the stages of the Software Development Life Cycle. The results of the application of genetics application show that the process of making course schedules can overcome the constraints of 1) space and time clashes, 2) lecturer conflicts, 3) Friday prayer times clashing, 4) there is a time when the lecturer wants for certain reasons, and 5) practicum in the laboratory room. By passing these constraints, the application of genetic algorithms in course scheduling is categorized as effective. Based on the results of running on 51 lecturers (51 chromosomes), the average running time 30 times in a row is 25.86 minutes so that the use of genetic algorithm applications in scheduling courses is efficient.

IMPLEMENTATION OF GENETIC ALGORITHM BASED ON JAVASCRIPT IN OBJECT ROUTING SHORTEST TOUR ON TIMOR ISLAND Simarmata, Justin Eduardo; Mone, Ferdinandus
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 17 No 1 (2023): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

The purpose of this study is to apply a genetic algorithm using a programming language that can be used to determine the shortest route to tourist attractions in Timor Island, East Nusa Tenggara. The application of genetic algorithms expected to be able to obtain the shortest route information that is most effective, the route that do not take a long time for tourists, and the presentation of route information for tourists. The method used is genetic algorithm to build the shortest route system for tourist attractions in Timor Island. The results of the system application shown that the optimization of travel routes that have been built can provide convenience in choosing tourist travel routes in Timor Island. Route optimization can help the process of making routes from the first location of departure and the attractions to be visited. The system is also used to assist domestic tourists in getting to know the attractions of Timor Island for solutions the shortest route.

PENGARUH KECEMASAN MATEMATIKA TERHADAP PERSIAPAN TES UTBK SISWA SMAN 1 KEFAMENANU Laja, Yosepha Patricia Wua; Simarmata, Justin Eduardo
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/jumadikavol4iss2year2022page58-64

Math anxiety is a condition that inhibits students' ability to reach the potential of learning experiences and classroom math assessments, or both which are emotional responses and objects of fear or fear. This definition shows that math anxiety can be one of the internal factors felt by each individual, especially when approaching certain tests or exams. UTBK test is one type of test or exam that makes math a compulsory subject that is tested. Students need to be given preparation in the form of guidance to reduce math anxiety in order to get maximum results. The purpose of this study is to see if there is an influence between math anxiety on UTBK test preparation of SMAN 1 Kefamenanu students. The method used in this research is descriptive quantitative. The population of this study were all students of SMAN 1 Kefamenanu Class XII. While sampling was done randomly totaling 71 students. The results showed that there was a negative relationship between math anxiety and UTBK test preparation results (simulation). However, this relationship does not have a significant effect on the result of UTBK test preparation

Structural Equation Modeling: The Influence of School Environment on Students' Interest in Selecting State University Simarmata, Justin Eduardo; Mone, Ferdinandus; Chrisinta, Debora
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 2 (2024): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i2.19921

Despite prior research on student interest in colleges, this study focuses specifically on how the school environment, including individual factors, friends, and teachers, influences students' interest in attending a state university. Understanding these influences can help improve educational systems to better guide students towards higher education. This study aims to determine the influence of the school environment on students' interest in selecting a state university. This research employs a quantitative approach, utilizing structural equation modeling to analyze the relationships between variables. This study examines how a school environment, captured by twelve indicators across individual, friend, and teacher influences, impacts students' interest in state universities. Therefore, data retrieval based on questionnaires is designed accordingly based on latent variables. The sample in this study were 474 high school and vocational school students on the Indonesia-Timor Leste border, which is precisely located in Timor Tengah Utara Regency. The results showed that the school environment that came from individuals, partners, and teachers had a major influence on students' interest in choosing State University. Based on the analysis of structural equations, it was found that individual environments had a direct influence of 98%, partner environments had an indirect influence of 90%, and teachers also indirectly affected 71%. This study contributes to the field by quantifying the distinct influences of individual, peer, and teacher aspects of the school environment on students' interest in attending state universities. This knowledge can inform the development of targeted interventions to improve educational guidance and support student decision-making.

PELATIHAN DIVERSIFIKASI KELAPA MENJADI BRIKET DALAM UPAYA MENINGKATKAN PENDAPATAN KELOMPOK TANI Eduardo Simarmata, Justin; Bukifan, Melkisedik; Peter Gelu, Leonard; Chrisinta, Debora; Sukerti, Ni Wayan; Erlina, Nia; Mardana, Ida Bagus Putu
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 3 (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.v8i3.943-950

Kegiatan pengabdian ini dilaksanakan untuk meningkatkan kemampuan Kelompok Tani Nifunan di Desa Nian dalam mendiversifikasi limbah tempurung kelapa menjadi briket sebagai produk bernilai tambah. Metode yang digunakan meliputi sosialisasi, sosialisasi, pelatihan teknis, dan workshop pemasaran, dengan partisipasi aktif 21 anggota kelompok tani. Evaluasi dilakukan melalui angket, observasi, dan wawancara, baik selama kegiatan berlangsung maupun pasca kegiatan. Hasil pengabdian menunjukkan peningkatan hardskill peserta sebesar 70%, dengan 85% peserta memahami teknik pembuatan briket setelah pelatihan. Selain itu, 50% peserta mulai memproduksi briket untuk kebutuhan rumah tangga atau pemasaran lokal, yang berpotensi meningkatkan pendapatan ekonomi mereka. Kegiatan ini juga membuka peluang kolaborasi untuk pengembangan lebih lanjut di bidang pemasaran digital dan produksi skala besar.

Co-Authors Abi, Roberto Ade Mirza admin pythagoras, admin Agnes L A Halla Agustinus Giovandi Laki Agustinus Giovandi Laki Ahzan, Z.N. Ahzan, Zulkaidah Nur Aloisius Loka Son Amran Shidik, Muhammad Astriani Dewi, Ni Putu Yuni Atencia, Bryant Bennet D Atencia, Bryant Bennet D. Baldemor, Milagros R. Bana, Marten Luter Bano, Elinora Naikteas Bantaika, Aris Benu, Kristiani Benu, Luky Wandika Bernadeta Buik Bete, Hendrika Bete, Maria Erlince Bifel, Maria Gabriela Bait Bone, Dominifridus Cecilia Novianti Salsinha Chrisinta, Debora Debora Chrisinta Dian Grace Ludji Elfrida Nailopo Elin, Lailin Hijriani Elisabet Ersamayori Foeh Elisabeth E Mayori Elizio Victor De Araujo Erlina, Nia Ferdinandus Mone Ferdinandus Mone Fetronela Rambu Bobu Fitriani Fitriani Fitriani Gelu, Leonard Peter Gelu, Leonard Peter Gerhard-Wilhelm Weber Gusti Firda Khairunnisa H. Bete Hendrika Yeni Meti Hijriani, Lailin Hijriani, Lailin Hutubessy, Aditya Ida Bagus Putu Mardana Ida Bagus Putu Mardana Iis Aprianti Jeniana Martha Prima Asa Josua Sahala Juventianus Kenjam Juventianus Kenjam Kehi, Sefrinus Kenjam, Juventianus Klau, Kondradus Yohanes Kondradus Yohanes Klau Kono, Metriana Maria Kristofel Bere Nahak Lailin Hijriani Lidu, Maria Maneno, Regolinda Margareta Rodrigues Gomes Maria Brigita Niis Nana Maria Delviana Mali Maria Naimnule Maria Naimnule Maria Naimnule Marselinus Banu Melkisedik Bukifan Melkisedik Bukifan Merlin Helentina Napitupulu Miko Purnomo Missa, Yeni mone, ferdinandus Moses Timutang Muhammad Amran Shidik Naimnule, Maria Naisau, Angela Cristina Natalia Emanuela Lelboy Nelciana Talan Ni Putu Yuni Astriani Dewi Ni Putu Yuni Astriani Dewi Ni Wayan Sukerti Ni Wayan Sukerti Nia Erlina Nifu, Martha Marsela Nifu, Martha Marsella Oktovianus Mamoh Olo, Maria Regina Pakaenoni, Lusilia Dos Santos Pasaribu, Revi Lestari Patrisius Bauk Peter Gelu, Leonard Pius Thaal, Pius Prudensius Manek Purba, Switamy Angnitha Rita Sila, Vinsensia Ulia S. A. Purba Sanam, Thofilus Sari, Nur Nilam Seko, Herbert Sele, Yunawati Selestina Nahak Siahaan, Meiva Marthaulina Lestari Sila, Vinsensia Ulia Rita Silfester Faentaono Sirait, Debora Sitti Rosnafi’an Sumardi Sopbaba, Merlina Stanislaus Amsikan Switamy Angnitha Purba Taena, Vinsensia Gerosa Talan, Nelciana Tampani, Margarita Tavares, Ricson Thresia Trivict Semiun Ulia Rita Sila, Vinsensia Uskono, Yunitha Centriana Venidora Solo, Maria Fransiska Vinsensia Ulia Rita Sila Wihelmina, Maria Wisrance Winda Ade Fitriya B Wua Laja, Yosepha Patricia Yakoba Yusina Muanley Yohanes Jefrianus Kehi Yuni Astriani Dewi, Ni Putu Zulkaidah Nur Ahzan Zulkaidah Nur Azhan

Title

Found 103 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 103 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 103 Documents
Search