Pemahaman konsep merupakan kemampuan seseorang untuk mendefinisikan, membedakan, memberi contoh, dan menghubungkan suatu konsep dari apa yang diketahui dengan pengetahuan baru serta mampu mengaplikasikan konsep tersebut. Adapun indikator pemahaman konsep yang dikembangkan oleh Anderson adalah merumuskan masalah, membuat hipotesis, merancang percobaan, melakukan percobaan dan membuat kesimpulan. Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran inkuiri terbimbing berbantuan simulasi PhET pada pokok bahasan alat optik terhadap pemahaman konsep peserta didik dan mengetahui sikap peserta didik terhadap pembelajaran yang dilakukan menggunakan model pembelajaran inkuiri terbimbing berbantuan simulasi PhET. Penelitian ini berpendekatan deskriptif kuantitatif dengan menerapkan model pembelajaran inkuiri terbimbing berbantuan simulasi PhET pada materi alat optik. Penelitian ini berpendekatan deskriptif kuantitatif dengan desain penelitian true experimental jenis posttest only control design. Subjek penelitian ini adalah peserta didik kelas XI MIPA 6 dan MIPA 7 SMA Negeri 9 Semarang. Teknik pengumpulan data menggunakan instrumen tes yang mengacu indikator pemahaman konsep sebanyak 15 soal dan teknik non tes menggunakan lembar observasi. Hasil penelitian menunjukan menunjukkan bahwa nilai sig.(2-tailed) sebesar 0,029 lebih kecil dari 0,05 sehingga dapat dikatakan bahwa terdapat pengaruh model pembelajaran inkuiri terbimbing berbantuan simulasi PhET terhadap pemahaman konsep pada materi alat optik. Terbukti dengan nilai rata-rata posttest kelas eksperimen yang lebih tinggi yaitu 74,6297 dibandingkan kelas kontrol 67,2326. Penilaian sikap peserta didik terhadap pembelajaran yang dilakukan menggunakan model inkuiri terbimbing berbantuan simulasi PhET melalui observasi didapatkan kelas eksperimen memiliki nilai rata-rata 83,779 berkategori baik.

Penyalahgunaan smartphone dan penurunan minat belajar peserta didik menjadi permasalahan yang serius pasca Covid 19. Hal ini terjadi karena pesatnya perkembangan teknologi tidak diimbangi dengan kontrol guru dan orang tua saat proses pembelajaran. Akibatnya, peserta didik menggunakan smartphone untuk kegiatan yang kurang bermanfaat. Permasalahan ini membutuhkan kreativitas guru agar kegiatan pembelajaran dapat menarik minat peserta didik. Oleh karena itu, dilakukan penelitian pengembangan media pembelajaran berbasis Android dengan model Problem Based Learning  (PBL) menggunakan Powerpoint terintegrasi iSpring Suite. Metode penelitian yang digunakan adalah metode research & development (R&D) dengan model 4D. Subjek penelitian ini yaitu dosen sebagai validator ahli, guru sebagai validator praktisi, dan peserta didik sebagai responden. Kelayakan media ini dinilai oleh seorang dosen, dua orang guru, dan 37 peserta didik kelas XI IPA 1 dan XI IPA 2 SMA Negeri 1 Sukorejo. Penilaian dosen menunjukkan hasil layak pada ketiga aspek, respon guru menunjukkan hasil sangat layak pada dua aspek dan layak pada satu aspek, respon peserta didik menunjukkan hasil sangat layak untuk tiga aspek. Sehingga dapat disimpulkan bahwa media pembelajaran yang dikembangkan layak digunakan sebagai upaya mengatasi permasalahan rendahnya minat belajar peserta didik terhadap kegiatan pembelajaran yang disebabkan oleh perkembangan teknologi.

The application of an appropriate learning model to a particular material will make it a successful achievement. The purpose of this research is to explore and describe the implementation of the Project-Based Learning (PjBL) model in teaching the material of hikayat texts and short stories through video projects in class X at SMA Negeri 1 Kota Mojokerto. This study uses both primary and secondary data sources. The primary data was obtained from student participation in the implementation of the Project-Based Learning (PjBL) model, while the secondary data includes various relevant literatures, journals, and previous studies. Based on observations, the implementation of the Project-Based Learning (PjBL) model in class X at SMA Negeri 1 Kota Mojokerto has shown positive results and supports the development of students' skills in understanding the material. The use of video projects as part of PjBL has successfully attracted students' interest, encouraging them to be more active and creative in learning about Hikayat texts and short stories. Overall, the implementation of the PjBL learning model in the teaching of Hikayat texts and short stories at SMA Negeri 1 Kota Mojokerto has proven successful in improving the quality of learning and students' skills.

Nolokerto Village is a developing village and most of the businesses owned by the village, one of which is a catering business, produce a lot of organic waste that has a high water content, especially those that are easily decomposed. Unmanaged organic waste can cause environmental problems. Realizing the importance of effective waste management, KKN UIN Walisongo Semarang students held counseling and compost training activities so that food waste can be processed and reused. The program began with general materials on waste, followed by training on compost fertilizer for organic waste. The resulting compost fertilizer is then distributed to villagers to support agriculture and reduce the environmental impact of organic waste.

This article examines the management of marine tourism in Lanjukang Island, a tourist destination located in the Spermonde Islands, Makassar City, South Sulawesi, with a focus on the role of maritime diplomacy in increasing tourism potential while preserving marine resources. This research uses a qualitative approach with literature study methods and interviews with relevant parties, such as local governments and local communities. Lanjukang Island, with its beautiful underwater nature and beaches, faces challenges in the form of coral reef damage due to destructive fishing practices and coastal abrasion processes. Nevertheless, Lanjukang Island remains an attractive tourist destination for domestic and foreign tourists. The Makassar City Government plays an active role in promoting marine tourism through international collaboration, one of which is through the Makassar International Eight Festival and Forum (F8) event. Maritime diplomacy, which emphasizes international cooperation in marine resource management and tourism, plays a key role in facilitating sustainable tourism development on Lanjukang Island. The research found that while there is great potential in the marine tourism sector, more integrated and sustainable management is needed to support the local economy and the preservation of the marine environment. Collaboration between government, community and international partners is essential to achieve a balance between tourism development and nature conservation.

This research aims to explore the optimization of land clearing techniques in supporting agricultural sustainability in Dahana Tabaloho Village, Gunungsitoli District, North Sumatra. This research involved students of the University of Nias Agrotechnology Study Program who applied land clearing techniques which included weed removal, soil loosening, drainage and bed making. The methods used in this study were direct observation, interviews, and measurement of soil parameters before and after the application of the techniques. The results showed that the combination of traditional and modern techniques in land management can improve tillage efficiency and environmental sustainability. The use of cultivators for soil loosening is proven to speed up the process, but still requires organic fertilizer to maintain the quality of the soil structure. Good drainage is effective in managing excess water and ensuring water availability during the dry season. In addition, making beds with proper direction supports optimal plant growth. The 15% increase in organic matter content and the stability of soil pH to remain neutral are indicators of the success of the applied techniques. Overall, this study provides evidence that proper land management can support sustainable agricultural productivity in the tropics.

Lahan gambut merupakan ekosistem vital bagi lingkungan global untuk menghadapi ancaman serius dari aktivitas manusia seperti deforestasi dan konversi lahan. Penelitian ini bertujuan untuk menyelidiki dan mengevaluasi pendekatan, metode, serta praktik pembelajaran Ilmu Pengetahuan Alam (IPA) yang terintegrasi dengan konteks lahan gambut, sehingga diharapkan dapat meningkatkan pemahaman dan kesadaran siswa tentang konservasi. Melalui metodologi studi literatur, penelitian ini menganalisis berbagai sumber ilmiah relevan untuk mengidentifikasi dan mengevaluasi efektivitas metode pembelajaran dalam meningkatkan pemahaman peserta didik mengenai ekosistem lahan gambut. Hasil penelitian menunjukkan bahwa model pembelajaran berbasis literasi sains, kearifan lokal, dan kreativitas, serta pendekatan interdisipliner yang menggabungkan aspek ekologi, biologi, kimia, dan ilmu tanah, dapat meningkatkan pemahaman holistik dan kesadaran lingkungan siswa. Penggunaan teknologi seperti simulasi komputer dan pemetaan digital terbukti efektif dalam memvisualisasikan kompleksitas ekosistem lahan gambut. Selain itu, penelitian ini mengidentifikasi pentingnya melibatkan komunitas lokal dan pengetahuan tradisional dalam kurikulum pembelajaran. Pendekatan berbasis proyek, eksperimen lapangan, dan metode pembelajaran kolaboratif juga direkomendasikan untuk memfasilitasi pengalaman langsung dan pemecahan masalah terkait pengelolaan lahan gambut. Implikasi dari penelitian ini mencakup rekomendasi untuk pengembangan kurikulum dan pelatihan guru yang berfokus pada integrasi IPA dengan isu-isu lingkungan lokal, khususnya lahan gambut. Penelitian lebih lanjut diperlukan untuk mengembangkan metode pembelajaran yang lebih efisien dalam mengintegrasikan IPA dengan konteks lahan gambut, guna mendukung upaya konservasi dan pengelolaan berkelanjutan ekosistem kritis ini.

Soil pH is an indicator of soil quality that is important to note because it  affects the balance of nutrients in the soil. This is important, especially to maintain the fertility of agricultural land. The purpose of this study was to analyze soil quality based on the soil pH of maize and chili plants. The research sample was taken on the agricultural land of Gemuhblanten Village, Gemuh District, Kendal Regency ins October 2022. Sampling was carried out at six points on each of the maize and chili field. The initial pH data obtained was then averaged. It was obtained that the average soil pH of maize plants was 7.75 which was in the "slightly alkaline" criteria. The average soil pH of chili plants is 7.08 which is a "neutral" criterion The soil pH value for maize plants is slightly higher than the good soil pH for maize plants. Meanwhile, the pH of the soil in chili plants meets a good soil pH value for chili plants.

Psychology is a scientific discipline that aims to understand human behavior. The differences in human behavior in response to the presence of stimulus have proven that every human being is unique and not the same, and their needs are different. No human being is the same psychologically even though their physical condition looks the same to the naked eye. This affects human abilities as well when faced with the source of the problem at hand. Every human being must constantly develop their competence, so as not to experience a mental crisis that can eventually lead to pathological disorders. Understanding human uniqueness especially in cognitive, affective, and psychomotor abilities will help in the smoothness of the counseling process. At SMAN 5 Tasikmalaya, the counseling process is not based on psychological theory alone, but depends on the student. How to approach students who have problems at this high school with one of the ways in each class there is 1 hour of counseling lessons a week, so that students do not have fear, but students become more courageous to consult the BK teacher.

Purpose: This study aims to improve brain tumor detection by integrating Fuzzy Logic with K-folds validation to enhance classification accuracy and robustness. The research addresses the challenge of distinguishing between normal and abnormal brain MRI images.
Methods: This study utilized a public dataset from Kaggle comprising 2,660 MRI images, initially categorized into four classes: Glioma, Meningioma, Pituitary, and No Tumor. For the study, Glioma, Meningioma, and Pituitary were combined into one abnormal label, resulting in two classes: Normal and Abnormal. The methodology involved pre-processing the images, applying Fuzzy Logic with K-folds validation (K=3), and evaluating the model’s performance using single prediction tests.
Result: The proposed approach achieved an exceptional accuracy of 99.88% during the K-folds validation process. The model demonstrated strong performance across all test samples, accurately classifying both normal and abnormal cases, with true positive results in single prediction tests.
Novelty: This study introduces a novel combination of Fuzzy Logic with K-folds validation, demonstrating a significant improvement in classification accuracy compared to existing methods. The integration of these techniques offers a robust framework for brain tumor detection, enhancing diagnostic precision and addressing the challenge of distinguishing between various tumor types in MRI images.