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All Journal Jurnal Biologi Tropis Jurnal Ilmiah Profesi Pendidikan
Nurlaili Hidayati
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Upaya Peningkatan Hasil Belajar Biologi melalui Model Pembelajaran Problem-Based Learning pada Materi Sistem Sirkulasi di Kelas XI Kedinasan 2 MAN 2 Mataram Nurlaili Hidayati; Anindita Suliya Hangesti Mandra Kusuma
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 1 (2026): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i1.4720

Abstract

Rendahnya hasil belajar biologi peserta didik seringkali disebabkan oleh kurangnya keterlibatan aktif dalam proses pembelajaran. Oleh karena itu, diperlukan model pembelajaran yang mampu mendorong peserta didik untuk berpikir kritis dan aktif memecahkan masalah. Penelitian ini bertujuan untuk meningkatkan hasil belajar biologi peserta didik melalui penerapan model pembelajaran Problem-Based Learning pada kelas XI Kedinasan 2 MAN 2 Mataram. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) dilaksanakan dalam dua siklus yang diawali dengan pra-siklus. Setiap siklus meliputi tahap perencanaan, pelaksanaan tindakan, observasi, dan refleksi dengan subjek penelitian sebanyak 40 peserta didik. Data hasil belajar dikumpulkan melalui tes pada akhir setiap siklus dan dianalisis secara deskriptif kuantitatif. Hasil penelitian menunjukkan peningkatan hasil belajar klasikal dari pra-siklus sebesar 60% dengan rata-rata kelas 75,3, menjadi 65% dengan rata-rata 79,5 pada siklus I, dan meningkat lagi menjadi 88% dengan rata-rata 86,2 pada siklus II. Berdasarkan hasil tersebut dapat disimpulkan bahwa penerapan model pembelajaran Problem-Based Learning efektif dalam meningkatkan keterlibatan dan hasil belajar biologi peserta didik.
Carbon Content and CO2 Sequestration in the Bagek Kembar Mangrove Essensial Ecosystem Area (EAA), Sekotong, West Lombok Nurlaili Hidayati; Didik Santoso; Eni Suyantri
Jurnal Biologi Tropis Vol. 26 No. 4 (2026): in Progress
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i4.12744

Abstract

Mangrove ecosystems contribute significantly to climate change mitigation because of their capacity to content carbon and sequestration large amounts of carbon dioxide (CO₂). This research was carried out to examine the carbon content and CO₂ sequestration of mangrove forests in the Essensial Ecosystem Area (EEA), Bagek Kembar, Sekotong, West Lombok. Data were collected through by applying a line transect approach in combination with plot based sampling. Carbon content and CO₂ sequestration were calculated using an allometric method based on equations established by the IPCC. Rhizophora mucronata emerged as the dominant species, representing 39.54% of the total number of individuals. The findings demonstrate that the mangrove forest within the Bagek Kembar EEA has a carbon content of  34.56 ton C/ha and CO₂ sequestration of 126.82 CO₂/ha. These findings indicate that the mangrove forest in the EEA Bagek Kembar play a crucial role in carbon content and CO₂ sequestration, thereby contributing to climate change mitigation while serving as a scientific foundation for the sustainable conservation and long term management of mangrove ecosystems.
Co-Authors Anindita SHM Kusuma Didik Santoso Eni Suyantri