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Endang Purwati RN
Universitas Andalas
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PENERAPAN MEDIA GAMBAR PADA MATA PELAJARAN GEOGRAFI DI SMA NEGERI 28 HALMAHERA SELATAN Rumiyati, Rumiyati; Rasyid, Rusman; Purwati, Endang
Phinisi Integration Review Volume 8 Nomor 2 Tahun 2025
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/pir.v8i2.74591

Abstract

Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa pada mata pelajaran Geografi kelas X SMA Negeri 28 Halmahera Selatan melalui penerapan media gambar sebagai alat bantu pembelajaran. Metode yang digunakan adalah Penelitian Tindakan Kelas (PTK) dengan dua siklus, masing-masing meliputi tahap perencanaan, pelaksanaan, observasi, dan refleksi. Data dikumpulkan melalui tes hasil belajar, lembar observasi aktivitas guru dan siswa, serta dokumentasi pembelajaran. Hasil penelitian menunjukkan adanya peningkatan signifikan dari siklus I ke siklus II, dengan persentase ketuntasan belajar siswa meningkat dari 43% menjadi 83%. Peningkatan ini didukung oleh peningkatan partisipasi aktif siswa dan pengelolaan pembelajaran yang lebih baik oleh guru. Kesimpulannya, penggunaan media gambar efektif dalam meningkatkan pemahaman konsep dan motivasi belajar siswa pada materi Geografi, khususnya materi dinamika hidrosfer dan konservasi perairan laut. Penelitian ini merekomendasikan penerapan media gambar secara konsisten sebagai strategi pembelajaran inovatif untuk meningkatkan kualitas pembelajaran dan hasil belajar siswa.This study aims to improve student learning outcomes in Geography for Grade X at SMA Negeri 28 Halmahera Selatan through the use of visual media as an instructional aid. The research employed a Classroom Action Research (CAR) approach, conducted in two cycles, each consisting of planning, action, observation, and reflection stages. Data were collected using learning outcome tests, observation sheets for teacher and student activities, and documentation of the learning process. The results show a significant improvement in student achievement from Cycle I to Cycle II, with the percentage of students achieving mastery increasing from 43% to 83%. This improvement was supported by increased student participation and better classroom management by the teacher. In conclusion, the use of visual media proved effective in enhancing students' conceptual understanding and motivation in learning Geography, particularly on the topics of hydrosphere dynamics and marine water conservation. The study recommends the consistent use of visual media as an innovative learning strategy to enhance both the quality of instruction and student learning outcomes.
Change Detection of Topographic Features using Iteratively Reweighted Multivariate Alteration Detection and Random Forest Classification for Partial Updating of Indonesian Topographic Map Purwati, Endang; Harintaka
GEOID Vol. 20 No. 2 (2025)
Publisher : Departemen Teknik Geomatika ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/geoid.v20i2.6364

Abstract

The current demand for geospatial information is increasingly urgent across various sectors, making the provision of base maps a top priority that is currently being accelerated. However, a major challenges faced today is the outdated nature of the Indonesian Topographic Map (Peta Rupabumi Indonesia/RBI), many of which were produced several years ago and are now considered obsolete. Updating the data is essential to ensure the validity of geospatial information in accordance with current conditions. At present, the detection of change in topographic feature is still largely conducted manually, thereby necessitating the exploration of methods to accelerate partial map updating processes. This study implements a change detection approach using Iteratively Reweighted Multivariate Alteration Detection (iMAD) method, in combination with Random Forest (RF) and Rule-based Classification. The iMAD technique is relatively insensitive to radiometric differences between acquisition times and simultaneously considers all spectral bands. Its iterative process improves accuracy, making it suitable for change detection in partial mas updates. Random Forest Classification supports the interpretation of iMAD results by providing information on changes in land cover types. The iMAD results indicate that the majority of detected changes fall under the ambiguous category (49,18%), followed by unchanged pixels (24,78%), significant changes (20,91%), and agricultural changes (5,13%). Overall accuracy of Random Forest Classification reached 90,45 % in 2019 and 93,20 % in 2023. The Kappa coefficient was 0,8920 and 0,8936 for 2019 and 2023, respectively. The final change detection results, after applying rule-based classification show that 19,70% of the study area experienced change, while 80,30% remained unchanged. Therefore, this approach presents an effective and efficient alternative for conducting partial updates of the Indonesian Topographic Map (RBI).
Co-Authors -, Risfaheri -, Urnemi Adisti Rastosari Adjam, Syarifuddin Agung Rahmadi Ahmad Sobari Anak Agung Istri Sri Wiadnyani Andi Tenri Pada Agustang Andono, Rizky Harsya Anna Farhana Anna Farhana Aslinar Aslinar Asnita Ode Samili, Asnita Ode Dahlyanti, Rina Dermawan , Very Dian Chandrasasi Didik Tulus Subekti Donny Harisuseno Dwi Nugroho Eka Wulandari Srihadi Putri, Eka Wulandari Srihadi El Latifa Sri Suharto Ferawati, . Firda Arlina Gustina Lubis Harintaka Hasim, Jainudin Helmi Arifin Helmi Helmi Hendri Purwanto Hernita Pasongli Hidayat, Zoni Husmaini Husmaini Ibnu Rahmadani Iskandar Zulkarnain James Hellyward Jamhari Jamhari Jamsari Jamsari Jaswandi . Lily Montarcih Limantara Lutfi, Nurhalisa J Mangku Mundana Melia, Sri Moh. Sholichin Muhammad Ilham Murni, Yulia Nimas Ayu Anggraini, Nimas Ayu Putra, Dino Eka Rasyid, Rusman Rini Wahyu Sayekti Rumiyati, Rumiyati Sanusi Ibrahim Sayful, Fery Lismanto Siti Maimunah Sri Rahayu Ningsih Sumanti, Titi Sumaryati Syukur Sumedi Sumedi Syahrilfuddin Syahrilfuddin, Syahrilfuddin Syaiful, Amrie Tamrin Robo Tinda Afriani Urnemi - Ussy Andawayanti Vebriyanti, Ely Very Dermawan Widandi Soetopo Yamin, Fahrun Yorva Sayoeti Yuliawati Yurnalis Yurnalis Yusri Dianne Jurnalis Zariul Antosa Zona Octarya Zona Octarya Zulkifli Ahmad