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All Journal Edumatika Cerdika: Jurnal Ilmiah Indonesia Al-Bahjah Journal of Islamic Community Service Mathematics Education Journal
Rosmiati, Tanti
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Religion Humanities Computer Science & IT Economics, Econometrics & Finance Education Health Professions Mathematics Public Health Social Sciences Other

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Learning Trajectory for Teaching the Mean Concept Using Problem-Based Learning and Animated Video Aripin, Usman; Rosmiati, Tanti; Rohaeti, Euis Eti; Hidayat, Wahyu
Mathematics Education Journal Vol. 19 No. 1 (2025): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jpm.v19i1.pp181-196

Abstract

Conceptual understanding is a critical component of effective mathematics learning. However, many students encounter challenges in understanding mathematical concepts, including the concept of the mean. This study aims to design a learning trajectory that enhances students’ conceptual understanding of the mean. Employing a design research methodology, the study followed the stages of validation studies in creating and refining a hypothetical learning trajectory (HLT). The research consisted of three stages: preliminary design, design experiment (encompassing pilot experiment and teaching experiment), and retrospective analysis. The participants were fourty eighth-grade students from a public school in Cimahi. Data were collected through interviews, observations, documentation, and field notes, which informed iterative improvement to the HLT. Data analysis involved comparing students’ actual learning experiences with the HLT as a reference framework. The findings reveal that integrating technology and problem-based learning enhances students’ conceptual understanding of the mean, fostering creativity and real-world problem-solving skills. Based on these results, this study proposes a validated learning trajectory to support students in developing a deeper conceptual understanding of the mean.
Pola Barisan Dalam Alat Musik Gangsa Daerah Bali Rosmiati, Tanti; Putri Bahari, Jessica; Yuliyanti, Alfini
Cerdika: Jurnal Ilmiah Indonesia Vol. 4 No. 2 (2024): Cerdika : Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v4i2.751

Abstract

Gamelan Bali merupakan salah satu alat musik tradisional populer yang dikagumi oleh warga Internsional dan memiliki karakterisitik kuat dengan ritme musiknya yang cepat. Pada penelitian ini akan difokuskan pada satu objek alat musik gamelan bali, yaitu gangsa. Tujuan penelitian ini adalah untuk mengetahui konsep matematika yang terdapat pada alat musik gamelan Bali, khususnya gangsa. Jenis penelitian ini adalah penelitian kualitatif dengan pendekatan etnografi. Subjek penelitian ini adalah Ketua Tabuh UKM STANA, sebuah unit kegiatan mahasiswa yang bergerak dibidang seni di Universitas Mahasaraswati Denpasar. Metode pengumpulan data yang digunakan adalah kajian literatur, observasi, wawancara, dan dokumentasi yang kemudian dianalisis dan diidentifikasi konsep-konsep matematika yang ada dalam alat musik gangsa sehingga dapat dilakukan penarikan kesimpulan. Berdasarkan hasil penelitian yang diperoleh melalui observasi dan wawancara, dapat diketahui bahwa ukuran dan permainan dalam alat musik gangsa memiliki konsep matematika. Konsep matematika yang kami temukan dalam alat musik gangsa yaitu konsep pola barisan aritmatika dan pola berulang (repeating pattern). Kesimpulan dari penelitian ini bahwa ada keterkaitan antara alat musik gangsa dengan pembelajaran matematika sehingga hal ini dapat dijadikan alternatif media belajar matematika.
Solving Smartphone Storage Management Problems: Students’ Mathematical Literacy Based on Self-Regulated Learning Aripin, Usman; Rosmiati, Tanti; Pitriyani, Widaningsih; Fauzi, Fikri
Edumatika Vol 7 No 1 (2024): May 2024, Edumatika : Jurnal Riset Pendidikan Matematika
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan IAIN Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/ejrpm.v7i1.3614

Abstract

The students’ mathematical literacy skills tend to be influenced by their self-regulated learning. This study aims to analyse mathematical literacy skills based on students' self-regulated learning. The research method used was descriptive-qualitative, involving 40 students from one of the Islamic junior high schools in Bandung Barat, West Java. The instruments used were a PISA-like mathematical literacy problem and a self-regulated learning questionnaire. The data analysis technique used was the Miles and Huberman model. This model uses data collection, data reduction, data presentation, and conclusion drawing. The results showed that students with high and medium level of self-regulated learning had given correct and careful answers related to managing storage on smartphones, but the students with a moderate level of self-regulated learning were careless in performing calculations. While, students with a low level of self-regulated learning have been able to understand the problem carefully, even though they have difficulty finding the right answer. This reseach can be used as one of basis for developing more effective learning strategies that support the improvement of mathematical literacy through empowering self-regulated learning.
Pembinaan UTBK-SNBT Kategori Penalaran Kuantitatif dan Penalaran Matematika di SMA Kartika XIX-2 Bandung Aripin, Usman; Rosmiati, Tanti; Gunawan, Guntur
ABJIS: Al-Bahjah Journal of Islamic Community Service Vol. 1 No. 1 (2024): ABJIS VOL.1 NO. 1 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61553/abjis.v1i1.37

Abstract

SNPMB is the 2023 National Selection for Admission of PTN New Students which was previously called SBMPTN (Joint Selection for State University Entrance). The SNP was formed by the Minister of Education and Culture to prepare for selection to enter PTN. This team is responsible to the Minister of Education, Culture, Research and Technology. The SNPMB test line is called SNBT (Test-Based National Selection). This policy underwent many changes from the previous SBMPTN, namely the basic science and technology ability test was replaced with a literacy test (Indonesian, English, mathematics). dedication This focus discusses the characteristics of the mathematics test both on the Scholastic Knowledge Test and the mathematical literacy test. The purpose of this exercise is to socialize SNBT information and training in dealing with quantitative reasoning and mathematical reasoning questions. The outputs achieved were Quantitative Reasoning and Mathematical Reasoning Question Drafts, draft articles on the results of community service activities. The method used was seminars and training for 30 class XII students of SMA Kartika XIX-2 Bandung. As for the results of the training, all students looked very enthusiastic in participating in coaching, this can be seen from the enthusiasm of students in working on problems with their groups and enthusiasm in asking questions and expressing their opinions, students can solve questions after getting a strategy for working on questions by the instructor.
Co-Authors Euis Eti Rohaeti Fauzi, Fikri Guntur Gunawan Pitriyani, Widaningsih Putri Bahari, Jessica Usman Aripin, Usman Wahyu Hidayat Yuliyanti, Alfini