Rini Oktavia, S.Si., M.Si., Ph.D

Tentang Saya (About Me)

I started working as a faculty in the Department of Mathematics of Syiah Kuala University since 2003/2004 academic year after working at Universitas Pendidikan Indonesia (UPI) Bandung for 8 years. I got my bachelor in 1993 and master's degrees in 1998, both in mathematics, from Bandung Institute of Technology. I got my second master's degree in mathematics from The University of Texas at Austin in 2009. I got my PhD in mathematics education from Texas State University in 2013. My research interests are in mathematics and statistics education especially in investigating how students learn difficult concepts in mathematics and statistics as well as how to assess students' understanding. I also have a strong interest in doing research in discrete mathematics, linear algebra, and functional analysis.

Saya mulai bekerja sebagai dosen di Jurusan Matematika Universitas Syiah Kuala sejak tahun ajaran 2003/2004. Pendidikan S1 dan S2 saya di bidang matematika dan S3 di bidang pendidikan matematika/statistika. Riset yang saya tekuni adalah di bidang matematika murni, matematika diskret, pendidikan matematika dan statistika.

rini_oktavia@usk.ac.id

Publikasi (Publications)

Jurnal (Journals)

Rini Oktavia, Rahma Zuhra, Hafnani, Nurmaulidar, Intan Syahrini, 2023, Application of Poisson and Negative Binomials models to estimate the frequency of insurance claims, Jurnal Natural, 23(1), 8-16, 1141-8513, 2541-4062.

Salmiati, Zahnur, Rini Oktavia, 2021, Pengembangan Media Pembelajaran Berbasis Android di Sekolah Menengah., Jurnal MUDARRISUNA: Media Kajian Pendidikan, 11(1), 77-84, 2089-5127, e-ISSN 2460-0733.

Mutia Mentari, Rini Oktavia, Saiful Mahdi, 2020, The Structural Equation Models of Factors Affecting Knowledge of Future Mathematics Teachers., International Journal of Psychosocial Rehabilitation, 24 (2), 158-163, 1475-7192.

Siti Rusdiana, Rini Oktavia, Empya Charlie, 2019, Application Of Hungarian Method In Optimizing The Scheduling Of Employee Assignment And Profit Of Home Industry Production, Journal of Research in Mathematics Trends and Technology (JoRMTT), 1(1), 24-33, e-ISSN 2656-1514.

White, A., Sorto, M. A., Oktavia, R., 2014, Featured STEW Lesson Plan: The Gumball Machine., The Statistics Teacher Network, 83, 16-22, .

Chin, A. Y. M. & Oktavia, R., 2007, A Note on Strongly ?-Regular Elements, International Journal of Applied Mathematics, 20 (5), 637-640, .

Rini Oktavia, 2003, Grup Homology dari kompleks yang dibangun oleh resolusi projektif suatu modul projektif, Jurnal Matematika Integratif, 1, Edi, 33-39, 1412-6184.

Rini Oktavia, 2003, Karakterisasi Ekivalensi Morita, Jurnal Matematika, Aplikasi dan Pembelajarannya, 2 (1), 206-211, 1412-8632.

Prosiding (Proceedings)

Rini Oktavia, Irwandi , Melvina, and Rajibussalim, 2021, Interpreting the investigative science learning environment (ISLE) for its implementation in Indonesian STEM education , Empowering Science and Transforming Communities through STEM Education, The 1st South East Asia Science, Technology, Engineering and Mathematics International Conference (SEA- STEM IC) 2020, Syiah Kuala University, Banda Aceh, Indonesia, 20-22 Oktober 2020, , IOP Publishing, , 1742-6588 (print); 1742-6596 (web).

Hizir Sofyan, Irwandi, Wiwit Artika, Rini Oktavia, Zainal Arifin Lubis, Intan Mulia Sari, 2021, The Integration of STEMC in Indonesia: Current Status and Future Prospects , , The 2nd SEA-STEM International Conference (SEA-STEM), Hat Yai, Thailand, 24-25 November 2021, , IEEE Publishing, , ISBN: 978-1-6654-1680-1.

Ikhsan Maulidi, Intan Syahrini, Rini Oktavia, Mahyus Ihsan, Raudha Emha, 2021, An analysis on determination of land area claim prediction for rice farmers insurance business in Indonesia using nonparametric bayesian method , Research on Science Education, Environment, and Applied for Smart Society, Young Scholar Symposium on Science Education and Environment (YSSSEE) 2020, Lampung, Indonesia, 22-23 September 2020, , IOP Publishing, , 1742-6588 (print); 1742-6596 (web).

Irwandi, Intan Mulia Sari, Rini Oktavia and M Syukri, 2020, MEMS and IoT Applications in ISLE-based STEM Physics Learning Media for Mechanics Topic with LabVIEW Integration, , The 6th Annual International Seminar on Trends in Science and Science Education, North Sumatera, Indonesia, 16-17 Oktober 2020, , IOP Publishing, , 1742-6588 (print); 1742-6596 (web).

Irwandi, Rini Oktavia, Rajibussalim and A Halim, 2020, Using the ELVIS II+ platform to create \"learning is fun\" atmosphere with the ISLE-based STEM approach, Improving Professionalism and Reflective Thinking through Design Research, The 7th South East Asia Design Research International Conference (SEADRIC 2019), Yogyakarta, Indonesia, 25-27 Juli 2019, , IOP Publishing, , 1742-6588 (print); 1742-6596 (web).

Iin Maulina, Siti Rusdiana, Rini Oktavia, 2019, Optimisasi Model Analisa Sensitivitas Primal–Dual dalam Management Produksi Dodol , Talenta Conference Series: Science and Technology (ST), Semirata International Conference on Science and Technology (ICST), Medan, Indonesia, 4-6 Mei 2018, Medan, Indonesia, TALENTA Publisher Universitas Sumatera Utara, , 2654-7082.

Rini Oktavia, Nurmaulidar, Intan Syahrini, Hafnani, 2019, Effects of Teaching the Sampling Distribution of the Means using Simulation With and Without Stating the Central Limit Theorem, Decision Making Based on Data, The 2019 IASE Satellite Conference, Sasana Kijang, Kuala Lumpur, Malaysia, 13-16 Agustus 2019, New Zealand, The International Association for Statistical Education (IASE) & International Statistical Institute, 1-6, Not Available.

Rini Oktavia, Irwandi, Rajibussalim, Mutia Mentari, Intan Mulia Sari, 2018, Assessing the validity and reliability of questionnaires on the implementation of Indonesian curriculum K-13 in STEM education, International Conference, The 6th South East Asia Design Research International Conference (6th SEA-DR IC), Syiah Kuala University, Banda Aceh, Indonesia, 27-28 Juni 2018, , IOP Publisher, , .

Rini Oktavia, Ridha Ferdhiana, Riski Ayunanda, Nurmaulidar, Intan Syahrini, Hafnani, Tarmizi Usman, Taufiq Iskandar, 2018, The Development of Instruments to Identify Basic Mathematics Understanding of New Students of FMIPA Syiah Kuala University, Advanced Research for Statistics, Mathematics, Sciences and Education for Enhancing International Publication, 2nd International Conference on Statistics, Mathematics, Teaching, and Research, Makassar, South Sulawesi, Indonesia, 9-10 Oktober 2017, , IOP Publishing, , 17426588.

Rini Oktavia, Irwandi, Rajibussalim, Mutia Mentari and Intan Mulia Sari, 2018, Assessing the validity and reliability of questionnaires on the implementation of Indonesian curriculum K-13 in STEM education , Inspiring students to learn: Fostering Innovative teaching and learning of mathematics, science, and technology, The 6th South East Asia Design Research International Conference (6th SEA-DR IC), Banda Aceh, Indonesia, 27–28 June 2018, , IOP Publishing, , 1742-6588 (print); 1742-6596 (web).

Irwandi, Rini Oktavia, Rajibussalim, A Halim and Melvina, 2018, Light Emitting Diode (LED) as an essential prop component for STEM education in the 21st century: A focus for secondary school level , Inspiring students to learn: Fostering Innovative teaching and learning of mathematics, science, and technology, The 6th South East Asia Design Research International Conference (6th SEA-DR IC), Syiah Kuala University, Banda Aceh, Indonesia, 27-28 Juni 2018, , IOP Publishing, , 1742-6588 (print); 1742-6596 (web).

Rini Oktavia, Salmawaty Arif, Ridha Ferdhiana, Syarifah Meurah Yuni, and Mahyus Ihsan, 2017, A structural equation modeling analysis of students’ understanding in basic mathematics, , THE 13TH IMT-GT INTERNATIONAL CONFERENCE ON MATHEMATICS, STATISTICS AND THEIR APPLICATIONS (ICMSA2017), Kedah, Malaysia, 4-7 Desember 2017, , AIP Publishing, , ISBN: 978-0-7354-1595-9.

Somphong Jitman et al., 2016, Proceedings 2016 12th International Conference on Mathematics, Statistics, and Their Applications, International Conference on Mathematics, Statistics, and Their Applications 2016, 12th International Conference on Mathematics, Statistics, and Their Applications (ICMSA) 2016 in Conjuction with the 6th Annual International Conference (AIC) of Universitas Syiah Kuala, Banda Aceh, 4-6 Oktober 2016, IEEE XPlore, IEEE Publishing, 1-153, 978-1-5090-3385-0.

Oktavia, R, Sorto, M. A., 2014, Confirmatory and Exploratory Factor Analyses of Students' Developmental Levels in Learning Statistics, Sustainability in statistics education, The Ninth International Conference on Teaching Statistics, Flagstaff, AZ, USA, July, 2014, Voorburg, The Netherland, International Statistical Institute, 0, .

Buku (Books)

Mela Aziza, Zurya Tina Hasanah, 2022, MATHEMATICS TEACHER'S QUESTIONING ACTIVITY IN ONLINE LEARNING DURING COVID-19 PANDEMIC; Should teacher ask math questions ideally or effectively? , Banda Aceh, Syiah Kuala University Press, 978-623-264-682-7; ISBN: 978-623-264-683-4 (PDF).

Rini Oktavia, Dinda Yana, Hafnani, Rahmah Zuhra, Ikhsan Maulidi, 2022, Estimating Insurance Average Claim Amounts using Buhlmann-Straub Credibility (Chapter 1 in Empowering Science and Transforming Communities through STEM Education), Banda Aceh, Syiah Kuala University Press, 978-623-264-682-7, 978-623-264-683-4 (PDF).

Rini Oktavia, Edwar Iswardy (Eds), 2022, Empowering Science and Transforming Communities through STEM Education: Book Chapter, Banda Aceh, Indonesia, Syiah Kuala University Press, 978-623-264-682-7, 978-623-264-683-4 (PDF).

Somphong Jitman et al., 2016, Proceedings 2016 12th International Conference on Mathematics, Statistics, and Their Applications, IEEE XPlore, IEEE Publishing, 978-1-5090-3385-0.