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All Journal Jurnal Pendidikan Matematika (JPM) JP3M (Jurnal Penelitian Pendidikan dan Pengajaran Matematika) BERNAS: Jurnal Pengabdian Kepada Masyarakat Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Jurnal Siliwangi: Seri Pendidikan Mosharafa: Jurnal Pendidikan Matematika Catimore: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Siliwangi
Vepi Apiati
Universitas Siliwangi
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Integrating Geometer’s Sketchpad and Realistic Mathematics Education: A Visual Media Model for Plane Geometry Redi Hermanto; Satya Santika; Depi Ardian Nugraha; Vepi Apiati
Mosharafa: Jurnal Pendidikan Matematika Vol. 14 No. 3 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v14i3.3523

Abstract

Permasalahan rendahnya pemahaman mahasiswa terhadap materi geometri bangun datar akibat media pembelajaran yang kurang interaktif dan kontekstual menjadi fokus penelitian ini. Untuk mengatasi hal tersebut, penelitian ini berupaya mengintegrasikan Geometer’s Sketchpad (GSP) dengan pendekatan Realistic Mathematics Education (RME) menjadi sebuah media visual interaktif. Penelitian ini bertujuan menilai kualitas media dari aspek validitas, kepraktisan, dan efektivitas. Proses pengembangan mengikuti model ADDIE, melibatkan 32 mahasiswa pendidikan matematika yang mengikuti perkuliahan geometri di Universitas Siliwangi. Instrumen penelitian menggunakan  lembar penilaian ahli, angket kepraktisan, dan tes penguasaan konsep. Analisis data menunjukkan media telah tervalidasi (87,75%), dinilai praktis (86,5%), dan mampu meningkatkan hasil belajar mahasiswa (N-Gain 0,53). Media ini terbukti layak dan efektif dalam memperkuat pemahaman geometri bangun datar pada mahasiswa. The low level of students' understanding of plane geometry material, attributed to the lack of interactive and contextual learning media, has become the focus of this research. To address this issue, the study aims to integrate Geometer's Sketchpad (GSP) with the Realistic Mathematics Education (RME) approach to develop an interactive visual media. The objective of this research is to evaluate the quality of the media in terms of validity, practicality, and effectiveness. The development process follows the ADDIE model and involves 32 mathematics education students enrolled in geometry courses at Siliwangi University. The research instruments include expert validation sheets, practicality questionnaires, and concept mastery tests. Data analysis indicates that the media has been validated with a score of 87.75%, rated as practical at 86.5%, and demonstrated the ability to improve students' learning outcomes, with a normalized gain (N-Gain) of 0.53. The media is proven to be feasible and effective in enhancing students' understanding of plane geometry.
Development of iSpring Suite 11 Assisted RME Learning Media to Enhance Students’ Mathematical Critical Thinking Skills Refi Dwi Mariska; Vepi Apiati; Depi Ardian Nugraha
Jurnal Pendidikan Matematika (JPM) Vol 11 No 2 (2025): Jurnal Pendidikan Matematika (JPM)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jpm.v11i2.24691

Abstract

Students’ mathematical critical thinking skills remains low due to teacher-centered instruction, limited use of interactive digital media, and insufficient contextual learning experiences. Previous studies indicate that the Realistic Mathematics Education (RME) approach can support students’ reasoning, but its integration with interactive digital platforms such as iSpring Suite 11 has not been widely explored. This study addresses that gap by developing an RME-based interactive learning media assisted by iSpring Suite 11 for the topic of linear equations in two variables. The research used a Research and Development design with the ADDIE model. Data were collected through expert validation sheets, student response questionnaires, and a mathematical critical thinking skills test. Participants included media experts, material experts, instructional design experts, and 33 ninth-grade students at SMP Negeri 8 Tasikmalaya. Data analysis covered feasibility evaluation, practicality assessment, and effectiveness testing using the N-gain formula. The results show that the media was rated highly feasible by all experts, received very positive responses from students, and effectively improved mathematical critical thinking skills with an average N-gain score of 0.73, categorized as high. These findings demonstrate that iSpring Suite 11–assisted RME media provides meaningful learning experiences by combining contextual problem-solving with interactive digital features. The developed media can serve as an alternative digital tool to support mathematics instruction and strengthen students’ mathematical critical thinking skills.
Pelatihan Pengembangan Perangkat Pembelajaran Berbasis Kurikulum Merdeka melalui Model PjBL pada Guru MGMP SMA se-Kota Tasikmalaya Vepi Apiati; Yeni Heryani; Redi Hermanto; Ipah Muzdalipah
Catimore: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1 (2024): Catimore: Jurnal Pengabdian kepada Masyarakat
Publisher : LSM Catimore dan Sahabat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56921/cpkm.v3i1.158

Abstract

Activities for implementing the Community Service Program Featured Study Program Scheme (PbM-PUPS) by the Mathematics Education Department towards the High School Mathematics MGMP which is implemented in the form of "Workshop: Development of Independent Curriculum Based Learning Tools Through the PJBL Model for High School Mathematics MGMP Teachers throughout the City of Tasikmalaya", provide benefits and convenience for teachers in compiling teaching materials, Student Worksheets, and evaluation tools that will be used in learning, provide opportunities for mathematics teachers to gather, discuss, and share their experiences and knowledge in teaching mathematics and discuss changes or development of the independent curriculum, and discussing how to implement this curriculum well and effectively in mathematics learning in the classroom.
Pelatihan dan Pendampingan Penyusunan Laporan Keuangan dengan Sistem Data Keuangan Cilacap (SIKECIL) sebagai Upaya Peningkatan Kualitas Koperasi AGRO IHWANI Bolang Eva Mulyani; Mega Nur Prabawati; Eko Yulianto; Elis Nurhayati; Vepi Apiati
Catimore: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 2 (2024): Catimore: Jurnal Pengabdian kepada Masyarakat
Publisher : LSM Catimore dan Sahabat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56921/cpkm.v3i2.239

Abstract

Cooperatives play an important role in the community economy, especially in supporting the growth of the small and medium business sector. However, one of the main challenges faced by cooperatives is the low quality of financial reports, which has an impact on transparency and accountability in financial management. To overcome this problem, training and mentoring activities for the preparation of financial reports with the Cilacap Financial Data System (SIKECIL) have been carried out at the AGRO IHWANI Bolang Cooperative, Cilacap Regency. This training aims to improve the capacity of cooperative administrators in preparing accurate financial reports, in accordance with accounting standards, and effectively and efficiently. The Cilacap Financial Data System (SIKECIL) is a dynamic application using a spreadsheet designed to facilitate the input of various types of accounting transactions by users in one step, with the ultimate goal of producing comprehensive cooperative financial reports. In making SIKECIL, a unique programming language is used which is intended for cooperative financial management. The methods used include the PRA (Participatory Rural Appraisal) approach, FGD (Focus Group Discussion), as well as counseling and training. The results of this activity show an increase in the understanding and skills of administrators in preparing financial reports using the better SIKECIL application, as well as an increase in the quality of transparency and accountability in cooperative financial management.
Realistic Mathematics Assisted with Learning Management System in Improving Students' Reflective Thinking Ability Vepi Apiati
Mosharafa: Jurnal Pendidikan Matematika Vol. 13 No. 4 (2024): October
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v13i4.1874

Abstract

Abstrak Kemampuan berpikir reflektif merupakan salah satu keterampilan yang perlu dikembangkan dalam pembelajaran matematika di abad ke-21. Salah satu pendekatan yang dinilai mampu mendorong pengembangan kemampuan ini adalah Realistic Mathematics Education (RME). Pendekatan ini menekankan pada keterkaitan antara konsep matematika dan konteks aktivitas harian siswa, hal ini memungkinkan siswa untuk tidak hanya menangkap materi secara konseptual, tetapi juga mengevaluasi proses berpikirnya sendiri. Penelitian ini bertujuan untuk mengembangkan modul pembelajaran matematika realistik berbantuan Learning Management System (LMS) untuk meningkatkan kemampuan berpikir reflektif siswa dan mengetahui kelayakan dari modul ajar tersebut. Metode yang digunakan dalam penelitian ini adalah Research and Development (R&D) dengan model pengembangan yang diadaptasi dari Borg dan Gall. Prosedur pengembangan terdiri atas beberapa tahapan, yakni: pengumpulan data awal, tahap perencanaan, pembuatan prototipe awal, uji coba terbatas, revisi berdasarkan hasil uji coba pertama, uji coba skala luas, revisi lanjutan, uji coba operasional akhir, dan penyempurnaan produk sebagai hasil akhir. Penelitian ini melibatkan siswa kelas XI di SMA Darussalam Tasikmalaya sebagai subjek. Pengumpulan data dilakukan dengan menggunakan instrumen angket kelayakan modul ajar, dan soal kemampuan berpikir reflektif. Analisis data dilakukan dengan penilaian pada hasil tes kemampuan berpikir reflektif dan penskoran pada angket kelayakan modul ajar. Hasil penelitian menunjukkan bahwa modul ajar yang dikembangkan mendapat penilaian layak dari ahli materi dan ahli media. Selain itu, penggunaan modul ajar ini mampu meningkatkan kemampuan berpikir reflektif siswa, sebagaimana tercermin dari peningkatan skor tes kemampuan berpikir reflektif siswa. Temuan ini mengindikasikan bahwa modul ajar matematika realistik berbantuan LMS mampu menciptakan suasana belajar yang kontekstual, menarik, dan efektif dalam mendukung pemahaman matematika yang lebih dalam. Dengan demikian, modul ini dapat dijadikan referensi oleh para pendidik dalam merancang pembelajaran matematika yang bermakna dan sesuai dengan tuntutan pendidikan di era digital. Abstract Reflective thinking ability is one of the skills that need to be developed in mathematics learning in the 21st century. One approach that is considered capable of encouraging the development of this ability is Realistic Mathematics Education (RME). This approach emphasizes the relationship between mathematical concepts and the context of students' daily activities, this allows students to not only grasp the material conceptually, but also evaluate their own thinking process. This study aims to develop a realistic mathematics learning module assisted by the Learning Management System (LMS) to improve students' reflective thinking skills and determine the feasibility of the teaching module. The method used in this study is Research and Development (R&D) with a development model adapted from Borg and Gall. The development procedure consists of several stages, namely: initial data collection, planning stage, initial prototype creation, limited trials, revisions based on the results of the first trial, large-scale trials, further revisions, final operational trials, and product refinement as the final result. This study involved grade XI students at SMA Darussalam Tasikmalaya as subjects. Data collection was carried out using a questionnaire instrument for the feasibility of the teaching module, and reflective thinking ability questions. Data analysis was carried out by assessing the results of the reflective thinking ability test and scoring on the module feasibility questionnaire. The results of the study showed that the developed teaching module received a decent assessment from material experts and media experts. In addition, the use of this teaching module was able to improve students' reflective thinking abilities, as reflected in the increase in students' reflective thinking ability test scores. These findings indicate that the LMS-assisted realistic mathematics teaching module is able to create a contextual, interesting, and effective learning atmosphere in supporting a deeper understanding of mathematics. Thus, this module can be used as a reference by educators in designing meaningful mathematics learning that is in accordance with the demands of education in the digital era.
Co-Authors Aei Fatimah Asep Saepulloh Dedi Nurjamil Depi Ardian Nugraha Eko Yulianto Elis Nurhayati Eva Mulyani Ike Natalliasari Ipah Muzdalipah LINDA HERAWATI Mega Nur Prabawati Mumu Mumu Nana Neni Heryani Redi Hermanto Refi Dwi Mariska Santika, Satya Sinta Verawati Dewi Siska Ryane Muslim Yeni Heryani Yeni Heryani