Article Per Year (5 Year)
p-Index From 2021 - 2026
4.055
P-Index
This Author published in this journals
All Journal AlphaMath: Journal of Mathematics Education EDU-MAT: Jurnal Pendidikan Matematika HISTOGRAM: Jurnal Pendidikan Matematika Al Ishlah Jurnal Pendidikan DWIJA CENDEKIA: Jurnal Riset Pedagogik Al-Madrasah: Jurnal Ilmiah Pendidikan Madrasah Ibtidaiyah Mandalika Mathematics and Educations Journal Indonesian Journal of Educational Development (IJED) Ruang Pengabdian : Jurnal Pengabdian Kepada Masyarakat Online Learning in Educational Research Jurnal Ilmu Pendidikan Indonesia Jurnal Gramatika: Jurnal Penelitian Pendidikan Bahasa dan Sastra Indonesia Jurnal Ilmu Pendidikan dan Pembelajaran Indonesian Journal of Mathematics Education Nuwo Abdimas Akademika Jurnal Teknologi Pendidikan Education and Sociedad Journal Musikolastika: Jurnal Pertunjukan dan Pendidikan Musik Sekolah Dasar: Kajian Teori dan Praktik Pendidikan Edcomtech: Jurnal Kajian Teknologi Pendidikan
Rangga Firdaus
Universitas Lampung
Religion Humanities Biochemistry, Genetics & Molecular Biology Chemistry Education Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

Published : 23 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 23 Documents
Search

 1   2   3 
Development of FlipaClip-Based Learning Media to Improve Problem-Solving Skills Nila Nifrani; Sugeng Sutiarso; Rangga Firdaus; Ari Suningsih
Indonesian Journal of Mathematics Education Vol. 7 No. 1 (2024): Indonesian Journal of Mathematics Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijome.v7i1.1190

Abstract

This study aims to evaluate the effectiveness of FlipaClip as a learning media, and to compare the problem-solving abilities of students who learn using FlipaClip and PowerPoint. This study employed the ADDIE development paradigm (Analysis, Design, Development, Implementation, and Evaluate) as a framework for research and development (R&D). The findings demonstrated the validity and viability of learning media that use a contextual approach to linear program content. With extremely valid criteria, the material validation findings came out at 84.38%. The validation results from media experts were 94.79%, which is considered highly valid. Although the student response received an assessment percentage of 83.64%, the response also met the FlipaClip-based learning media's "very interesting" requirements, indicating that it is practical to use. Moreover, the research shows that FlipaClip-based learning media on program material can improve the mathematical problem-solving ability of class XI students. Quantitatively, the difference is shown by the interpretation of N-Gain obtained in the experimental class, which is quite an effective category with a percentage of 70.22%. The average mathematical problem-solving ability of grade XI students who are given FlipaClip-based learning media is higher than the average student who is not given the media, as indicated by the results of the independent sample t-test, namely the Sig. (2- tailed) value of 0.000 <0.05.
Identifying Students' Difficulties in GeoGebra-Assisted Analytic Geometry Learning: Symbolic Abstraction and Visual Conceptual Gaps Rina Agustina; Sugeng Sutiarso; Rangga Firdaus; Rabiyatul Adawiyah Siregar; Caswita Caswita; Sunyono Sunyono; Hasan Hariri
AlphaMath : Journal of Mathematics Education Alphamath: Vol. 12, No. 2, November 2026
Publisher : Department of Mathematics Education, Universitas Muhammadiyah Purwokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/alphamath.v12i2.30316

Abstract

This study investigates the use of GeoGebra in learning analytical geometry in college, focusing on conceptual and cognitive barriers. Urgency: The main gaps identified were students' difficulty constructing symbolic abstractions before Visualization, as well as gaps between visual representation and symbolic reasoning. Objective: This study aims to identify these barriers and propose a pedagogical framework to optimize GeoGebra integration in learning. Method: The research used a qualitative case study design involving 199 respondents from seven universities in Lampung. Data were collected through an open-ended questionnaire (Google Form) and analyzed using the Miles and Huberman approach, triangulating sources to ensure data validity. All 199 participants' responses were included in the initial analysis. In the reduction phase, responses were systematically screened, categorized, and grouped into emerging themes aligned with the research questions, ensuring that only relevant data reflecting the conceptual and cognitive aspects of GeoGebra use were retained. Conclusions: The results of the data analysis showed that: (1) students had difficulty constructing symbolic abstractions before Visualization and (2) there was a gap between visual representation and symbolic reasoning, where students could draw graphs but could not relate them to the underlying mathematical concepts. Novelty: A four-stage pedagogical model was proposed: conceptual clarification, guided symbolic structuring, dynamic visual mapping, and reintegrative reflection. Contribution: This study suggests a learning design that explicitly integrates symbolic and visual representations, using GeoGebra as a cognitive tool to improve conceptual understanding in analytical geometry.
Pengembangan Aplikasi Guru Digital 4.1 untuk Mempermudah Penyusunan Perangkat Ajar Bagi Guru di Sekolah Dasar Ageng Dian Saputra; Herpratiwi Herpratiwi; Rangga Firdaus; Muhammad Nurwahidin
Jurnal Ilmu Pendidikan dan Pembelajaran Vol. 5 No. 1 (2026): October 2026
Publisher : Mitra Edukasi dan Publikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58706/jipp.id492

Abstract

Era transformasi digital Education 4.0 menuntut efisiensi kerja guru, namun beban administrasi yang tinggi sering kali menghambat kreativitas penyusunan perangkat ajar. Penelitian Research and Development (R&D) menggunakan model ADDIE ini bertujuan mengembangkan Aplikasi Guru Digital 4.1 untuk menyederhanakan alur kerja administratif dan meningkatkan kompetensi digital guru Sekolah Dasar di Kabupaten Pringsewu. Data dari 21 guru dianalisis menggunakan statistik deskriptif dan inferensial melalui paired samples T-Test serta analisis N-Gain. Kesimpulan hasil penelitian menunjukkan bahwa Aplikasi Guru Digital 4.1 sangat layak dengan skor rata-rata ahli 4,45 dan sangat praktis dengan skor kuesioner pengguna 4,46. Secara efektivitas, implementasi aplikasi terbukti secara signifikan (p < 0,001) meningkatkan rata-rata kompetensi digital guru dari 62,5 menjadi 82,3 (naik 31,7%; N-Gain 0,53) dan mendongkrak kualitas perangkat ajar dari 70,2 menjadi 87,3 (naik 24,4%; N-Gain 0,57). Fitur otomasi generator perangkat ajar berbasis 8 dimensi profil lulusan pembelajaran mendalam, analisis gaya belajar peserta didik (VAK), bank soal, dan forum kolaboratif terbukti secara nyata memangkas beban administratif guru sebesar 62,5% hingga 66,7%. Platform ini efektif berfungsi sebagai sarana self-regulated learning yang mengakselerasi profesionalisme dan literasi digital pendidik secara organik di lapangan.
Co-Authors Adji W. S. Minadja Ageng Dian Saputra Agus Suyatna Anindita Cahyani Ari Suningsih Berta Dinata, Karsoni Caswita Caswita Dina Martha Fitri Dina Maulina Dwi Mahya Sari Dwi Yulianti Erimson Siregar Fajar Juliantono Fajar Riyantika Fathur Rahman Fatkhur Rohman Feriansyah Sesunan Hariri, Hasan Helmy Fitriawan Ibnu Ripant Inarotul Ulya Irawan Suprapto Kenny Candra Pradana Margaretha Karolina Sagala Mufidah Nur Amaliah Muhammad Fuad Muhammad Ilham Setiadi Ni Rury Heranda Meduri Nila Nifrani Novalisa Puspitasari Nurwahidin, Muhammad Pradini, Susanthi Rabiyatul Adawiyah Siregar Riadi, Bambang Rina Agustina Rinaldi, Daniel Riswandi, Riswandi Riyan Hidayatullah Septiana Wahyuningsih Sheren Dwi Oktaria Siti Ahidiyah Sugeng Sutiarso Sunyono - - Tatik Handayani Tejapermana, Prisma Tejapermana Thitra Padma Rani Tina Yunarti Trisnawati Umi Hanifah Viyanti Wayan Suana Yasinta Mahendra