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Ramli, Irwan
Program Studi Fisika Fakultas Sains Universitas Cokroaminoto Palopo, Indonesia
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PENDAMPINGAN PELAKSANAAN LESSON STUDY BAGI GURU BIOLOGI DI SMA NEGERI 2 PALOPO Eva Sohriati; Nurmalasari S.; Nurasia Nurasia; Irwan Ramli; Khaerati Khaerati
Jurnal Abdimas Indonesia Vol. 3 No. 3 (2023): Juli-September 2023
Publisher : Perkumpulan Dosen Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jai.v3i3.533

Abstract

Kegiatan pendampingan pelaksanaan lesson Study bagi guru biologi di SMA Negeri 2 Palopo bertujuan untuk meningkatkan keterampilan guru dalam merancang proses pembelajaran di dalam kelas berbasis lesson study dengan tujuan agar dapat meningkatkan keaktifan peserta didik dalam proses pembelajaran sehingga dapat meningkatkan hasil belajar peserta didik khususnya pada mata pelajaran biologi. Kegiatan ini dilaksanakan selama 1 bulan yakni pada bulan Juli 2023. Kegiatan dilaksanakan dalam 3 tahapan yakni perencanaan, pelaksanaan dan Evaluasi. Pada tahapan perencanaan tim pengabdian melakukan observasi awal dan wawancara dengan pihak sekolah terkait permasalahan guru biologi disekolah. Pada tahapan pelaksanaan dilakukan melalui kegiatan pelatihan penyusunan bahan ajar atau kegiatan penyususnan lesson plan oleh guru model, dilanjutkan dengan tahapan pelaksanaan pembelajaran didalam kelas (do) dan diakhiri dengan kegiatan see yang merupakan refleksi dari pelaksanaan kegiatan didalam kelas. Adapun hasil yang diharapkan dari kegiatan ini adalah meningkatnya keterampilan guru dalam mengajar dan meningkatkan keaktifan serta hasil belajar peserta didik. Hasil dari kegiatan lesson study terlihat adanya peningkatan keaktifan siswa dalam proses pembelajaran didalam kelas.
Android Based Multimedia for Teaching Science in Junior High School Ramli, Irwan; Nurasia, Nurasia; Khaerati, Khaerati
Jurnal Pendidikan Fisika Vol 13, No 1 (2025): PENDIDIKAN FISIKA
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/jpf.v13i1.17202

Abstract

The COVID-19 pandemic has profoundly transformed global education, necessitating adaptive learning strategies to overcome the challenges of remote science instruction. This study aimed to develop and evaluate Android-based interactive multimedia using Adobe Flash CS for science learning, particularly human excretory system material, at Sukamaju State Junior High School 1. The research employed a Research and Development (RD) approach based on the ADDIE model, comprising analysis, design, development, implementation, and evaluation stages. The study involved 27 students from class VIII, selected through simple random sampling. Data were collected using expert validation sheets, teacher and student response questionnaires, and student learning outcomes assessments. The results indicated that the developed multimedia met all quality standards: media expert validation (98.5%), material validation (97%), language validation (86%), and video content validation (92%), all categorized as “very valid.” In terms of practicality, teacher and student responses yielded scores of 98% and 84.2%, respectively, indicating high practicality. Regarding effectiveness, student learning outcomes averaged 87.23%, and class completeness reached 81.4%, both falling into the “very effective” category. These findings demonstrate that Android-based science multimedia significantly enhances student engagement and learning outcomes by offering visually rich, interactive, and flexible educational content. The multimedia enables autonomous learning and supports teachers in delivering effective science instruction. Future research is recommended to broaden the content coverage across subjects and to develop applications compatible with online platforms for wider accessibility.
Android Based Multimedia for Teaching Science in Junior High School Ramli, Irwan; Nurasia, Nurasia; Khaerati, Khaerati
Jurnal Pendidikan Fisika Vol. 13 No. 1 (2025): PENDIDIKAN FISIKA
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/jpf.v13i1.17202

Abstract

The COVID-19 pandemic has profoundly transformed global education, necessitating adaptive learning strategies to overcome the challenges of remote science instruction. This study aimed to develop and evaluate Android-based interactive multimedia using Adobe Flash CS for science learning, particularly human excretory system material, at Sukamaju State Junior High School 1. The research employed a Research and Development (R&D) approach based on the ADDIE model, comprising analysis, design, development, implementation, and evaluation stages. The study involved 27 students from class VIII, selected through simple random sampling. Data were collected using expert validation sheets, teacher and student response questionnaires, and student learning outcomes assessments. The results indicated that the developed multimedia met all quality standards: media expert validation (98.5%), material validation (97%), language validation (86%), and video content validation (92%), all categorized as “very valid.” In terms of practicality, teacher and student responses yielded scores of 98% and 84.2%, respectively, indicating high practicality. Regarding effectiveness, student learning outcomes averaged 87.23%, and class completeness reached 81.4%, both falling into the “very effective” category. These findings demonstrate that Android-based science multimedia significantly enhances student engagement and learning outcomes by offering visually rich, interactive, and flexible educational content. The multimedia enables autonomous learning and supports teachers in delivering effective science instruction. Future research is recommended to broaden the content coverage across subjects and to develop applications compatible with online platforms for wider accessibility.
Electronic Structure of Various Shapes of Graphene Quantum Dot Ramli, Irwan; N. Sani; Sukarti; Nurmalasari
Jurnal Sains Materi Indonesia Vol. 27 No. 1 (2025): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2025.8998

Abstract

– We reported our study the electronic structure of graphene in bulk structure and graphene quantum dot (GQD) by density functional theory (DFT) by using in quantum espresso (QE) package. In order simulate the realistic shape of GQD, we set vacuum layer to avoid interaction between quantum dot in the periodic structure in crystal. We examined various shape of quantum dot namely triangular, Hexagon, parallelogram. The band gap is tunable by its shape which open wide application of GQD. We showed that we can tuning the electronic structure of graphene by tuning its structure. In bulk structure, graphene is zero-gap semiconductor. On the other hand, the results on GQD showed the discrete energy level and different shapes of GQD have different energy level and band gap.
Pemberdayaan Kelompok Tani Nilam melalui Produk Turunan Berbasis Teknologi Modern untuk Meningkatkan Pendapatan Petani Khaerati, Khaerati; Karmila, Karmila; Nurmala Sari Ismail; Irwan Ramli; Hilda Rahmawati
Abdimas Langkanae Vol. 5 No. 2 (2025): September-Desember 2025
Publisher : Pustaka Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jpm.v5i2.564

Abstract

Minyak nilam (Pogostemon cablin) merupakan komoditas atsiri unggulan Indonesia yang memiliki pangsa pasar global terbesar. Namun, petani di Desa Padang Kamburi, Kecamatan Bua Ponrang, Kabupaten Luwu, Sulawesi Selatan, masih menghadapi kendala pada tahap pascapanen dan pemasaran karena sebagian besar hanya menjual minyak mentah dengan nilai tambah rendah. Kegiatan ini bertujuan untuk memberdayakan kelompok tani nilam melalui pengembangan produk turunan berupa sabun mandi dan parfum menggunakan teknologi modern guna meningkatkan pendapatan. Metode yang digunakan adalah participatory action research dengan tahapan pelatihan teknis, pendampingan produksi, manajemen usaha, dan pemasaran digital. Hasil menunjukkan adanya peningkatan signifikan pada keterampilan produksi, kualitas produk, serta pendapatan petani setelah program dijalankan. Inovasi ini membuktikan bahwa integrasi teknologi modern pada pengolahan produk pertanian dapat memperkuat ekonomi lokal dan meningkatkan kesejahteraan petani.
Siswa Tangguh Bencana: Penguatan Literasi dan Mitigasi Bencana pada Siswa SMKN 10 Luwu Fitri Jusmi; Irwan Ramli; Rahma Hi Manrulu; Aryadi Nurfalaq; Hilda Rahmawati
Abdimas Singkerru Vol. 6 No. 1 (2026)
Publisher : Akademi Teknologi Industri Dewantara Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59563/singkerru.v6i1.247

Abstract

Kegiatan pengabdian kepada masyarakat ini dilatarbelakangi oleh masih terbatasnya pemahaman dan kesiapsiagaan siswa sekolah menengah terhadap risiko bencana, khususnya dalam hal mitigasi dan tindakan tanggap darurat. Kondisi tersebut menunjukkan pentingnya upaya peningkatan literasi kebencanaan sejak usia sekolah melalui pendekatan yang tidak hanya bersifat teoritis, tetapi juga aplikatif. Tujuan utama kegiatan ini adalah untuk meningkatkan pengetahuan, kesadaran, dan keterampilan siswa dalam menghadapi potensi bencana melalui edukasi, pelatihan teknologi sederhana, dan simulasi praktik evakuasi. Metode pelaksanaan kegiatan dilakukan secara partisipatif melalui tiga tahapan utama, yaitu edukasi kebencanaan dan mitigasi bencana, pelatihan pemanfaatan metode geolistrik, serta simulasi evakuasi bencana. Kegiatan dilaksanakan dalam bentuk penyuluhan interaktif, demonstrasi alat, praktik sederhana, serta simulasi kondisi darurat yang melibatkan siswa secara aktif. Hasil kegiatan menunjukkan adanya peningkatan pemahaman siswa terhadap konsep kebencanaan dan langkah mitigasi yang tepat. Pada kelompok edukasi, siswa mampu mengidentifikasi jenis bencana dan menjelaskan prosedur mitigasi secara lebih baik. Pada kelompok pelatihan geolistrik, siswa menunjukkan pemahaman terhadap prinsip dasar penggunaan alat serta manfaatnya dalam mengidentifikasi kondisi bawah permukaan tanah. Pada kelompok simulasi, siswa mampu mengikuti prosedur evakuasi dengan lebih tertib, terarah, dan menunjukkan kerja sama yang baik. Kegiatan ini juga memberikan manfaat dalam membentuk sikap tanggap bencana, meningkatkan kepercayaan diri siswa, serta mendorong terbentuknya budaya siaga bencana di lingkungan sekolah. Kegiatan ini menunjukkan bahwa integrasi edukasi kebencanaan, pelatihan teknologi sederhana, dan simulasi praktik merupakan pendekatan yang efektif dalam meningkatkan kesiapsiagaan siswa. Keterlibatan aktif siswa dalam seluruh tahapan kegiatan menjadi faktor penting dalam membangun pemahaman yang berkelanjutan dan aplikatif terhadap mitigasi bencana.
Development of an ESP32-Based Resistivity Meter Instrument with Integration of ACS712 Current Sensor, ADS1115 Voltage Sensor and Neo6MV2 GPS Module Aryadi Nurfalaq; Rahma Hi. Manrulub; Irwan Ramli
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 15 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v15n2.p35-46

Abstract

This study aims to develop an ESP32-based resistivity meter instrument integrated with an ACS712 current sensor, an ADS1115 voltage sensor, and a Neo6MV2 GPS model. This IoT-based instrument can be operated remotely so that it can streamline measurements. The method used in this study is the R&D method where this method aims to create innovations in the form of new and applicable products, systems, or models, and test their effectiveness. The research stages start from hardware design assembled based on block diagrams, software design using the Arduino IDE using the C++ programming language, testing and data collection. The results of the study showed that the ADS 1115 sensor has an average measurement error (% error) of 5.1%, the ACS 712 current sensor has an average% error of 3.6%, and the Neo6MV2 GPS module has an average latitude difference of 0.000016 degrees (1.81 m) and longitude of 0.000025 degrees (2.83 m). Measurements can be performed remotely via smartphone using the ESP32 at a distance of 41 m. Based on laboratory measurements, the resistivity values ​​obtained for the three layer conditions matched the resistivity values ​​of the reference materials used. This indicates that this resistivity meter can be used to identify mined minerals and groundwater aquifers.
Co-Authors Arfa, Nirmala Aryadi Nurfalaq Eva Sohriati Fitri Djusmi Hilda Rahmawati Hilda Rahmawati Illing, Ilmiati Indah Jaya Jusmi, Fitri karmila karmila Khaerati Khaerati Khaerati, Khaerati N. Sani Nurannisa Wahyuni Nurasia Nurasia Nurasia Nurasia Nurasia Nurmala Sari Ismail Nurmalasari Nurmalasari, Nurmalasari Rahma Hi Manrulu, Rahma Hi Rahma Hi. Manrulu Rahma Hi. Manrulub Risda Sucianti Azis Siswahyudianto Sukarti