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All Journal International Journal of Evaluation and Research in Education (IJERE) Cakrawala Pendidikan JURNAL PENELITIAN ILMU PENDIDIKAN MATEMATIKA DAN PEMBELAJARAN Indiktika : Jurnal Inovasi Pendidikan Matematika Teorema: Teori dan Riset Matematika SJME (Supremum Journal of Mathematics Education) Guru Tua : Jurnal Pendidikan dan Pembelajaran Equals : Jurnal Ilmiah Pendidikan Matematika MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika Koordinat : Jurnal Pembelajaran Matematika dan Sains Aksioma Jurnal Pendidikan Kognitif: Jurnal Riset HOTS Pendidikan Matematika Jurnal Teknik Sipil Pedagogy : Jurnal Pendidikan Matematika SWARNA Journal of Maternal and Child Health Science Indonesian Journal of Education (INJOE) Journal International Journal of Teaching and Learning (INJOTEL) Sciencestatistics: Journal of Statistics, Probability, and Its Application Jurnal Pendidikan MIPA
Suciati, Indah
Universitas Alkhairaat Palu
Religion Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Physics Public Health Social Sciences Other

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Analysis of Pre-service Mathematics Teachers' Representational Ability Regarding the Prime Numbers Concept Suciati, Indah; Rochaminah, Sutji; Hajerina, Hajerina
Jurnal Pendidikan MIPA Vol 26, No 2 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i2.pp1253-1273

Abstract

A deep understanding of prime numbers remains a significant challenge, particularly for pre-service mathematics teachers responsible for conveying this essential knowledge to their students. Prime numbers have an essential role in mathematics, including in factorization, proof, and cryptography. Therefore, this study aims to describe and analyze the representational abilities of prospective mathematics teacher students at Alkhairaat University, regarding the prime numbers in Number Theory. This study uses a descriptive exploratory method with a mixed-methods approach based on a sequential explanatory design. Data collection was carried out through diagnostic tests, semi-structured interviews, and documentation, which were then analyzed using descriptive statistics for quantitative data and the Miles & Huberman model for qualitative data. Triangulation of methods and time was used to ensure the validity of the data. The findings showed that out of 17 students, only 29.41% were able to provide accurate verbal representations related to the prime and composite numbers, and only 5.88% were able to link the two meaningfully. In addition, while students were able to mention definitions, most of them had difficulties applying the prime numbers in the abstract problem context, including examples in algebraic notation. This study concludes that there is still a significant gap in the representation ability of prime number concepts of pre-service mathematics teachers. The implications emphasize the need for integrating multidimensional representation learning strategies into the mathematics education curriculum so that prospective teachers are better prepared to teach prime numbers in a comprehensive and meaningful way.    Keywords: representation, prime numbers, number theory, pre-service mathematics teachers.
Growth Model Study Using a Comparison of Gompertz, Logistic, and Weibull Models Suciati, Indah; Vina Nurmadani; Yoga Aji Sukma; Linda Rassiyanti
Sciencestatistics: Journal of Statistics, Probability, and Its Application Vol. 3 No. 2 (2025): JULY
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/sciencestatistics.v3i2.9423

Abstract

Coronavirus Disease or COVID-19 has been a concern for the world, including Indonesia. The very rapid transmission of COVID-19 has had a wide impact on all communities around the world, especially Indonesia. To see the transmission of COVID-19 cases, which continues to increase rapidly, we can use a growth model. The growth model is a non-linear regression model that is used to describe growth behavior. These models can be exponential, sigmoidal, or S-shaped curves. The purpose of this study was to determine the growth curve model of positive COVID-19 cases in Indonesia using the Gompertz, Logistic, and Weibull models. After that, the model evaluation will be carried out using the coefficient of determination as a parameter, so that the best model will be obtained that can predict more accurately the growth of positive COVID-19 cases in Indonesia. The best model that can predict the growth of positive COVID-19 cases in Indonesia is the Gompertz model, with a coefficient of determination is 0.99064.
Co-Authors Abdul Manaf ABDUL MANAF Afadil Agus Leo Handoko Al-Afandi Al-Afandi Al-Afandi, Al-Afandi Alfisyahra Anggrainy, Rita Aprilina, Aprilina Ary Analisa Rahma Asmiati Asrullah Asrullah, Asrullah Ayu Anggreni, Made Ayulinansyah, Sri Badjeber, Rafiq Dewi Sri Wahyuni Dewi Sri Wahyuni Dewi Sri Wahyuni Dewi Sri Wahyuni, Dewi Sri Dian Kurniasari Fahrul Basir Gamar Abdullah Hajerina Hajerina Hajerina Hajerina Hajerina Hajerina Hajerina Hajerina Hajerina Hajerina, Hajerina Idrus Idrus Iis Hartati Ismail, Ayu Kasmudin Mustapa Khadijah Khaerani Khaerani Lilies N Tangge Linda Rassiyanti Mailili, Wahyuni H. Marina Marina Mustofa Usman Nasim Taha Nasim Taha Notiragayu Nurhalida Sartika Nursupiamin Nursupiamin, Nursupiamin Okzarima, Wenty Pasandaran, Rio Fabrika Putu Satya Narayanti Sari Wahyuni Sartika, Nurhalida Siti Hadija Alaydrus Sutamrin, Sutamrin Sutji Rochaminah Vina Nurmadani Wahyuni H Mailili Wahyuni H. Mailili Wahyuni H. Mailili Warsono Warsono Warsono Widiarti Windra Windra WINDRA, WINDRA Wulandari Wulandari Yoga Aji Sukma