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All Journal Journal on Mathematics Education (JME) AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Elemen Journal of Medives KALAMATIKA Jurnal Pendidikan Matematika Wacana Akademika : Majalah Ilmiah Kependidikan IndoMath: Indonesia Mathematics Education Formatif: Jurnal Ilmiah Pendidikan MIPA M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Gema Wiralodra Range : Jurnal Pendidikan Matematika MATH-EDU: Jurnal Ilmu Pendidikan Matematika Jurnal Abdimas Prakasa Dakara Brillo Journal Jurnal Pengabdian Sains dan Humaniora VARIANSI: Journal of Statistics and Its Application on Teaching and Research DEVOTE: Jurnal Pengabdian Masyarakat Global International Journal of Science Education and Cultural Studies Innovative: Journal Of Social Science Research Indonesian Educational Research Journal Hexagon: Jurnal Ilmu dan Pendidikan Matematika Jurnal Infinity Journal of Mathematics Theory and Applications
Aloisius Loka Son
Universitas Timor
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Pengaruh Resiliensi Matematis Terhadap Kemampuan Pemecahan Masalah Siswa kelas VIII Sekolah Menengah Pertama Elisabeth Olo; Aloisius Loka Son; Kondradus Yohanes Klau
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol 8 No 2 (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.8.2.2023.119-126

Abstract

Resiliensi matematis dapat membantu siswa untuk memecahkan masalah matematis. Siswa yang memiliki keterampilan resiliensi matematis tinggi akan mampu memecahkan masalah matematika. Karena itu, dilakukan penelitian ini untuk mengetahui pengaruh resiliensi matematis terhadap kemampuan pemecahan masalah siswa sekolah menengah pertama. Penelitian ini merupakan penelitian kuantitatif, dengan metode penelitian ex-post facto. Partisipan penelitian ini adalah siswa kelas VIII pada salah satu sekolah menengah pertama di Kabupaten Timor Tengah Utara. Semua populasi dijadikan sampel penelitian yang berjumlah 50 siswa. Instrumen penelitian ini adalah soal tes untuk mengukur kemampuan pemecahan masalah matematika, dan angket untuk mengukur resiliensi matematis siswa. Analisis data menggunakan statistik parametrik berupa uji regresi. Hasil penelitian ini menunjukkan bahwa terdapat pengaruh resiliensi matematis terhadap kemampuan pemecahan masalah siswa, dengan besar pengaruhnya adalah 85%, dan persamaan regresinya adalah . Direkomendasikan kepada guru matematika agar memfasilitasi resiliensi matematis siswa sehingga dapat memecahkan masalah matematika yang dihadapi.
Profil Kemampuan Pemecahan Masalah Matematika Siswa Kelas VIII Sekolah Menengah Pertama Ditinjau Dari Gaya Kognitif Mau, Maria Sensiana; Son, Aloisius Loka; Salsinha, Cecilia Novianti
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.8.3.2023.256-269

Abstract

This study aims to describe the problem-solving ability profile of junior high school students in class VIII in terms of cognitive styles from Field Independent and Field Dependent cognitive styles. The research method used is descriptive qualitative. This research was conducted in a junior high school in Belu district, in August 2023. The participants in this study were three FD cognitive style students and three FI cognitive style students. The instrument is a set of questions from the problem-solving ability test, the Group Embedded Figure Test, and interviews. The findings show that the profile of students' abilities in solving mathematical problems with the FI cognitive style is categorized as good in understanding the problem, planning the solution, implementing the solution plan, and checking again. Meanwhile, the ability of students with the FD cognitive style is categorized as sufficient at the stage of understanding the problem and planning a solution, and categorized as lacking at the stage of carrying out the settlement plan and looking back.
Penerapan Pendekatan Pendidikan Matematika Realistik Untuk Meningkatkan Kemampuan Pemecahan Masalah Kubus Dan Balok Siswa Kelas VIII Sekolah Menengah Pertama Naiheli, Maria Dolorosa; Son, Aloisius Loka; Klau, Kondradus Yohanes
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 9 No. 1 (2024): Vol 9 No 1 (2024): 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.9.1.2024.361-371

Abstract

Pemecahan masalah matematika merupakan kemampuan yang urgen bagi siswa. Karena itu dilakukan penelitian untuk meningkatkan kemampuan pemecahan masalah siswa dengan menerapkan pendekatan pendidikan matematika realistik. Jenis penelitian ini adalah penelitian tindakan kelas. Subjek dalam penelitian ini adalah siswa kelas VIII C salah satu SMP yang terletak di Kabupaten Timor Tengah Utara yang berjumlah 19 orang. Jenis data yang digunakan adalah data primer yakni data yang diperoleh langsung dari subjek peneliti. Alat pengumpulan data adalah lembar observasi dan tes. Hasil penelitian menunjukan bahwa pendekatan pendidikan matematika realistik dapat meningkatkan kemampuan pemecahan masalah matematika siswa. Hal ini dilihat dari persentase ketuntasan klasikal setiap siklus yaitu siklus I sebesar 68,4%. Hasil observasi aktivitas guru sesuai pengamatan diperoleh rata-rata 2,8 dengan kategori kurang sedangkan hasil observasi aktivitas siswa diperoleh rata-rata-rata 2,3 dengan kategori kurang. Persentase ketuntasan klasikal pada siklus II sudah meningkat menjadi 89,5%. Hasil observasi aktivitas guru sesuai pengamatan diperoleh rata-rata 4,2 dengan kategori baik sedangkan hasil observasi aktivitas siswa diperoleh rata-rata 3,8 dengan kategori baik. Direkomendasikan kepada guru matematika agar menggunakan pendekatan pendidikan matematika realistik sebagai salah satu alternatif dan memfasilitasi kemampuan pemecahan masalah siswa
Exploring junior high school students' geometry self-efficacy in solving 3D geometry problems through 5E instructional model intervention: A grounded theory study Sudirman Sudirman; Javier García-García; Camilo Andrés Rodríguez-Nieto; Aloisius Loka Son
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.p215-232

Abstract

Geometry self-efficacy is an essential affective aspect that will influence students in solving mathematics problems, especially geometry material. Therefore, teachers must be able to develop learning instructions that not only affect students' mathematical abilities but also strengthen students' affective aspects. This research explores students' geometry self-efficacy when learning to solve three-dimensional geometry problems through the 5E Instructional Model intervention. A grounded theory design was used to reveal the aims of this research. Participants in this research were one mathematics teacher and 22 students (12 girls and 10 boys) in class VIII at a state Junior High School in Indramayu Regency, Indonesia. The research involved the qualitative analysis of gathered data obtained through observation, questionnaires, interviews, and documentation, employing grounded theory analysis techniques, including open coding, axial coding, and selective coding. The findings revealed that students with high self-efficacy in geometry display confidence in describing and calculating the surface area and volume of three-dimensional geometric objects. Those with moderate self-efficacy in geometry are self-assured in addressing straightforward assignments but may need more confidence in tackling more complex tasks. Conversely, students with low self-efficacy in geometry tend to need more confidence and are prone to giving up easily. Therefore, this research emphasizes that the geometry self-efficacy level can influence how students act and complete 3D geometry tasks given by teachers in learning, especially 3D geometry learning.
Pembelajaran Melalui Pendekatan Pendidikan Matematika Realistik Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematika Siswa SMP Destiana Mali , Maria; Loka Son, Aloisius
Hexagon: Jurnal Ilmu dan Pendidikan Matematika Vol. 1 No. 2 (2023): October
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/hexagon.v1i2.5578.

Abstract

This study was conducted with the aim of determining the comparison of achievement and improvement in the problem-solving ability of students who learn through realistic mathematics education and a conventional approach. The study used quantitative methods in the form of a quasi-experiment. The design of this study used a pretest-posttest control group design. The participants in this study were students in grade VIII from one of the junior high schools in the Belu district. The sample in this study consisted of 22 students from class VIIIA as the experimental group, and 22 students from class VIIIB as the control group. The research instruments used were a problem-solving ability test and observation sheets. The results showed that the achievement and improvement in the mathematics problem-solving ability of students who learned through the realistic mathematics education approach were better than those of students who learned with a conventional approach. Learning with a realistic mathematics education approach can facilitate the problem-solving skills of junior high school students. It is recommended that future researchers apply the realistic mathematics education approach to other mathematical abilities.
Pencapaian dan Peningkatan Kemampuan Berpikir Kritis Siswa Kelas VIII SMP Melalui Pendekatan Pendidikan Matematika Realistik Trivonia Bau, Anastasia; Loka Son, Aloisius; Patricia Wua Laja, Yosepha
Hexagon: Jurnal Ilmu dan Pendidikan Matematika Vol. 1 No. 2 (2023): October
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/hexagon.v1i2.5724.

Abstract

The aim of this study was to compare the achievement and improvement of students' critical thinking skills through realistic mathematics education approaches and conventional learning. This study uses a quantitative method with a quasi-experimental approach. The research design used a pretest-posttest control group design. The experimental group learning used the PMR approach and the control group used conventional learning. This study was conducted in October 2022. The participants in this study were students of class VIII of a junior high school in Belu district. The sample in this study was 50 students consisting of two classes, each class consisting of 25 students. The research instrument was in the form of critical thinking ability tests and learning implementation observation sheets. Analysis of achievement data and improvement of necessary thinking skills using the Independent Samples t-test. The results of the study show that the achievement and improvement of students' mathematical necessary thinking skills who learn through a realistic mathematics education approach are better than students who learn with conventional approaches. This shows that learning with a realistic mathematics education approach can facilitate junior high school students critical thinking abilities
Penerapan Model Integrated Farming Berbasis Teknologi Konservasi sebagai upaya Mitigasi Bencana di Desa Nunbena di Kabupaten Timor Tengah Selatan Agu, Yakobus Pffeferius Edvent Saba; Nik, Nikolas; Son, Aloisius Loka; Banunaek, Zofar Agluis; Sumantra, I Ketut; Widnyana, I Ketut; Saraswati, Putu Sekarwangi
Innovative: Journal Of Social Science Research Vol. 5 No. 2 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i2.18214

Abstract

Kegiatan Pengabdian ini bertujuan untuk mendukung ketercapaian di bidang pangan melalui pendekatan sistem integrated farming. Sistem Integrated Farming merupakan sistem pertanian terintegrasi dengan memanfaatkan keterkaitan antara tanaman (kehutanan, Perkebunan, pangan dan hortikultura) serta ternak dan perikanan untuk mendapatkan agroekosistem yang mendukung produksi pertanian, peningkatan ekonomi dan pelestarian sumberdaya alam. Mitra Pengabdian ini adalah kelompok petani lokal Fatutupuk di desa Nunbena, TTS- NTT. Bentuk pelaksanaan teknologi dan inovasi yang diterapkan pada mitra Kelompok tani Fatutupuk berupa model integrated farming berupa Pembangunan demplot pangan Lestari berbasis teknologi BUDIKDAMBER. Kegiatan ini berhasil dilaksanakan sesuai dengan rencana, dengan pencapaian lebih dari 80% untuk sebagian besar indikator. Penguasaan materi oleh peserta yang mencapai 85% menunjukkan bahwa informasi yang disampaikan dapat diterima dengan baik. Selain itu, target 7 demplot budidaya sayur juga berhasil dibuat dengan berbagai jenis sayuran memberikan bukti nyata bahwa 80% peserta paham tentang bagaimana teknik budidaya yang benar sehingga menghasilkan produk pertanian yang berkualitas.
Profile of Mathematics Communication Ability of Seventh-Grade Students in Solving Set Problems Based on Cognitive Style Kresensia Usolin; Aloisius Loka Son; Talisadika Serrisanti Maifa; Javier García-García
RANGE: Jurnal Pendidikan Matematika Vol. 4 No. 2 (2023): RANGE Januari 2023
Publisher : Pendidikan Matematika UNIMOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpm.v4i2.3593

Abstract

This study aims to describe the profile of students' mathematical communication ability in solving set problems in terms of field-dependent and field-independent cognitive styles. This research method includes qualitative descriptive research. In this study, the collected data was in the form of words so that it did not emphasize numbers. Participants in this study consisted of three students with a field-dependent cognitive style and three students with a field-independent cognitive style from class VII at one of the junior high schools in North Central Timor Regency. The instruments used are a mathematical communication ability test, Group Embedded Figure Test, and interviews. The results showed that students with a field-independent cognitive style have high mathematical communication abilities. This can be seen from the test results of the three field-independent students who are able to express mathematical ideas through oral, written, demonstration and describe in visual form, are able to analyze, interpret, and evaluate mathematical ideas through oral, written, and other visual forms, and are able to use terms, mathematical notations, and their structures to present ideas, describe relationships, and situation models when solving problems mathematical sets. Meanwhile, students with a field-dependent cognitive style have low mathematical communication abilities. This can be seen from the results of the mathematics communication ability test of the three field-dependent students who have not been able to meet all the indicators of mathematical communication.
Bentuk Distribusi dan Rata-Rata Pendapatan Apotek Gracia Farma Sebelum dan Saat Covid-19 Frederikus Seran; Aloisius Loka Son; Eva Binsasi
Journal of Mathematics Theory and Applications Vol. 3 No. 2 (2025): Edisi April 2025
Publisher : Program Studi Matematika, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/j-math.v3i2.5496

Abstract

This research was carried out because of the emergence of the corona virus in Wuhan, China in December 2019. This virus has had many impacts, one of which is the amount of income in micro and macro businesses. The aim of this research is to determine the form of distribution and average income of the Gracia Farma Pharmacy before Covid-19 and during Covid-19. This research was carried out at the Gracia Farma Pharmacy, Kefamenanu City, North Central Timor Regency from 1 November 2019 to 31 August 2020. The data processing technique in this research was preceded by Distribution Fitting and parameter estimation using the Maximum Loglikehood Estimation (MLE) method, then model selection was carried out. The best method is using Akaike's Information Criterion (AIC) and Bayesian Information Criterion (BIC). The results of this research show that the form of distribution that corresponds to the total income data before Covid-19 is a Normal distribution with an average income of IDR 306,832 and the form of distribution that corresponds to the amount of income during Covid-19 is a Normal distribution with an average income Rp. 332,050.
ANALISIS PENDAPATAN PERUSAHAAN TEMPE DAN TAHU MENGGUNAKAN MODEL AUTOREGRESIVE INTEGRATED MOVING AVERAGE : Studi Kasus: UD Alfaria Kota Kefamenanu falentinus evandri abi; Eva Binsasi; Faustinus Luan; Aloisius Son
Journal of Mathematics Theory and Applications Vol. 3 No. 1 (2024): Edisi Oktober 2024
Publisher : Program Studi Matematika, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/j-math.v3i1.6447

Abstract

Penelitian ini bertujuan untuk memprediksi pendapatan usaha tempe dan tahu, jenis penelitian yang digunakanadalah penelitian kuantitatif. Penelitian ini dilaksanakan di UD Alfaria Kecamatan Kota Kefamenanu, KabupatenTTU. Sumber data pada penelitian ini adalah data sekunder yaitu data pendapatan tempe dan tahu, instrumenpenelitian yang digunakan adalah dokumentasi, berupa catatan pendapatan harian selama 7 bulan. Data yangdiperoleh, selanjudnya dianalisis menggunakan Aplikasi R. Hasil penelitian ini menunjukan bahwa model Arima(0,1,1) adalah model terbaik dengan Persamaan modelnya adalah:
Co-Authors Aan Juhana Senjaya Adelburga Indra admin pythagoras, admin Ana Paula Tae Angelina Lopo Anna Sako Bimolo Axel Dircio-Vargas Bete, Hendrika Camilo Andrés Rodríguez-Nieto Camilo Andrés Rodríguez-Nieto Cecilia Novianti Salsinha Darhim Darhim Destiana Mali , Maria Dominikus Nitsae Eduardus Beo Seso Delvion Efonius Piter Liwu Elisabeth Olo Ester M. N. Elly Auw Eva Binsasi falentinus evandri abi Fatimah, Siti Faustinus Luan Fiki Alghadari Frederikus Seran Funan, Fedelia García-García, Javier Gerardo Salgado-Beltrán Gunadi, Farid Handrianus Mentu I Ketut Sumantar I Ketut Sumantra I Ketut Widnyana I Ketut Widnyana Isnawan, Muhamad Galang Javier García-García Javier Garcia-Gracia Jefrianus Nino Klau, Kondradus Yohanes Kondradus Yohanes Klau Kresensia Usolin Lily Aulin Assya Mada, Grandianus Seda Maifa, Talisadika Serrisanti Maria Delviana Mali Maria Densiana Nailake Maria Elisabeth Timo Maria Fransiska Tas’au Maria Rosalinda Talan Maria Rosalinda Talan Mau, Maria Sensiana Misa, Yeni mone, ferdinandus Morales-Benitez, Leineri Naiheli, Maria Dolorosa Nasrianus Nampung Neta Deliana Bau Nik, Nikolas Nugraha K. F. Dethan Nur Ahzan, Zulkaidah Nurwijayanti Oktovianus Mamoh Patricia Wua Laja, Yosepha PUTU SEKARWANGI SARASWATI Regina Afeanpah Rizkiah Nurul Fitriani Ronaldus Ariyanto Jelahu Rosyadi Rosyadi Rosyadi Runisah, Runisah Salgado-Beltrán, Gerardo Sekar Wangi Selestina Nahak Septianingsi Manekat Siahaan, Meiva Marthaulina Lestari Simarmata, Justin Eduardo Sri Adi Widodo Sudirman Sudirman Sudirman Trivonia Bau, Anastasia Wua Laja, Yosepha Patricia Yakoba Yusina Muanley Yakobus Pffeferius Edvend Saba Agu Yohanes Jefrianus Kehi Yosepha Patricia W. Laja Yovita Maria Palla Yunita, Ika Zofar Agluis Banunaek