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All Journal Jurnal Matematika JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA Edukasi : Jurnal Penelitian dan Artikel Pendidikan SJME (Supremum Journal of Mathematics Education)
Beni Utomo
Universitas Sanata Dharma
Education Mathematics Social Sciences

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Analisis Kompetensi Guru Sebagai Bagian Dari Pedagogical Content Knowledge Guru Dalam Menerapkan Pendekatan Saintifik Dalam Program PLPG Rianasari, Veronika Fitri; Utomo, Beni; Rudhito, Marcellynis Andy
Jurnal Derivat: Jurnal Matematika dan Pendidikan Matematika Vol 3, No 1 (2016): Jurnal Derivat (Juli 2016)
Publisher : Pendidikan Matematika Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (125.348 KB) | DOI: 10.31316/j.derivat.v3i1.624

Abstract

AbstractThe purpose of this research is to analyze the competence of teachers as part of the teachers’ pedagogical content knowledge in applying scientific approach in Mathematics PLPG (in-service teacher education and professional training) program rayon 138 Yogyakarta, Indonesia, in 2014. The research method used is descriptive with quantitative approach. The subjects of the study consisted of 23 mathematics teachers including mathematics teachers of junior high school, high school and vocational school from Kebumen, Purworejo, and Magelang. Data was collected by filling in a questionnaire at the beginning and end of the training, observing microteaching activities, and documenting the learning material arranged by PLPG participants. Based on the analysis, it can be concluded that PLPG especially PLPG rayon 138 Yogyakarta, Indonesia, in 2014 gives benefits for the development of teachers’ PCK, especially in terms of teachers’ competence in applying scientific approach. Based on the analysis of learning materials arranged by the teachers and analysis of learning videos, it is known that the majority of the teachers have been able to construct a learning material using scientific approach and implement it properly.  Keywords: teacher’s competence, pedagogical content knowledge, scientific approach, PLPG
DEKOMPOSISI NILAI SINGULAR PADA SISTEM PENGENALAN WAJAH Beni Utomo
Jurnal Matematika Vol 2 No 1 (2012)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2012.v02.i01.p20

Abstract

Dekomposisi Nilai Singular atau Singular Value Decomposition (SVD)merupakan salah satu cara untuk menyatakan Principal Component Analysis (PCA).PCA sendiri merupakan suatu proses untuk menemukan kontributor-kontributorpenting dari suatu data berdasarkan besaran statistika deviasi standart dan variansi.SVD merupakan proses untuk mendapatkan matriks diagonal yang elementak nolnya merupakan nilai singular yang akarnya merupakan eigenvalue.SVD atas matriks kovarian C berbentuk C = U?V T dengan matriks U dan Vmemuat eigenvektor yang sudah terurut dari nilai variansi terbesar ke nilai variansiterkecilnya. Variansi terbesar memiliki arti eigenvektor menangkap ciri-ciri yangpaling banyak berubah. Sifat inilah yang dipakai untuk membentuk eigenface.
FRAKTAL DAN INVERS FRAKTAL Beni Utomo
Jurnal Matematika Vol 1 No 2 (2011)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2011.v01.i02.p13

Abstract

Fraktal sebagai sebuah geometri bisa digambarkan pada ruang dimensi dua dengansyarat yang harus dipenuhi yaitu bisa didefinisikan pada ruang metrik lengkap. Untukmengkonstruksi fraktal secara geometri tersebut diperlukan suatu himpunan fungsi yang dikenaldengan nama IFS dan jika IFS tersebut diiterasikan maka akan terbentuk suatu citra yangdikenal sebagai citra fraktal, artinya setiap ada IFS maka selalu bisa dikonstruksi citra fraktal.Invers fraktal merupakan balikan dari proses tersebut, yaitu jika diberikan sebarang citrafraktal maka bisakah ditemukan IFSnya. Jaminan adanya IFS tersebut dikenal dengan namaTeorema Collage.
Adaptasi dan Implementasi Prinsip-Prinsip Desain Pembelajaran Jarak Jauh Daring Oleh Calon Guru Matematika Yosep Dwi Kristanto; Niluh Sulistyani; Beni Utomo
SJME (Supremum Journal of Mathematics Education) Vol 7 No 1 (2023): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v7i1.6411

Abstract

The design principles of online distance learning that have been developed in previous studies need to be investigated in the process of adaptation and implementation. The process provides important insights to refine these principles to make them more appropriate to the learning context. The purpose of this study was to determine the process of adaptation and implementation of online distance learning design principles by preservice mathematics teachers. The present study employed qualitative research which is based on the activity theory model. The results of this study reveal the challenges experienced by preservice mathematics teachers in adapting and implementing online distance learning design principles. In addition, this study also finds that the community around the preservice mathematics teachers has an important role in supporting them to design and implement online distance learning.
Peningkatan Hasil Belajar Matematika Melalui Media Sedotan di Siswa Kelas I SDN Sarikarya Tri Wulandari; Beni Utomo; Helviana Fatkhurahmah
Edukasi: Jurnal Penelitian dan Artikel Pendidikan Vol 15 No 1 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/edukasi.v15i1.9180

Abstract

This study aims to improve the mathematics learning outcomes of addition and subtraction through concrete media in the form of straws for students in grade 1 SDN Sarikarya involving 22 students. The research method used is a class action research method using 2 cycles. Data collection techniques in this study were tests and observations. The results are in the form of data to then be analyzed through quantitative descriptive. The success criterion is that the percentage of learning completeness reaches> 75%. Based on the research conducted, it was found that the use of straw media showed an increase in mathematics learning outcomes in addition and subtraction material in each cycle. The percentage of students whose learning outcomes were completed at the pre-cycle stage was 50% with an average score of 66.3. In cycle I, it increased by 32% or was at 82% with an average value of 82.7. In cycle 2 there was an increase again with a percentage of 91% and a mean value of 86.8. These results indicate that the application of straw media makes students experience an increase in mathematics learning outcomes in addition and subtraction.
Co-Authors Achir Yani S. Hamid Helviana Fatkhurahmah Niluh Sulistyani Rudhito, Marcellynis Andy Tri Wulandari Yosep Dwi Kristanto