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All Journal Al-Zahra : Journal for Islamic and Arabic Studies Dinamika Dusturiah : Jurnal Hukum Islam, Perundang-undangan dan Pranata Sosial Biosfer: Jurnal Pendidikan Biologi Jurnal Darussalam: Jurnal Pendidikan, Komunikasi dan Pemikiran Hukum Islam Al-'Adl Communications in Science and Technology IJEMS (Indonesian Journal of Environmental Management and Sustainability) Ganaya: Jurnal Ilmu Sosial dan Humaniora Jurnal Informasi dan Teknologi ADHKI: Journal of Islamic Family Law INFOKUM Humanism : Jurnal Pengabdian Masyarakat Poros Onim TASAMUH: Jurnal Studi Islam Khidmatuna : Jurnal Pengabdian Kepada Masyarakat ProBisnis : Jurnal Manajemen Jurnal Pengabdian Masyarakat : Pemberdayaan, Inovasi dan Perubahan Perspektif Hukum Mudabbir: Journal Research and Education Studies Familia: Jurnal Hukum Keluarga Al-Istinbath: Jurnal Hukum Islam International Journal of Community Service (IJCS) Honai Al-Aqwal : Jurnal Kajian Hukum Islam Jurnal Manajemen Rekayasa dan Inovasi Bisnis Kartika: Jurnal Studi Keislaman Jurnal Ilmu Manajemen Dan Kewirausahaan (JIMK) Indo-Fintech Intellectuals: Journal of Economics and Business Indonesian Journal of Material Research Jurnal Pendidikan Islam Expectation: Journal of Islamic Education Management (JIEM) Bulletin of Engineering Science, Technology and Industry International Journal of Sustainable Law Jurnal Dinamika Penelitian: Media Komunikasi Penelitian Sosial Keagamaan Journal of Biology Science and Education ALMUSTOFA: Journal of Islamic Studies and Research Service Pedagogi: Jurnal Pendidikan Dasar
Amri
Institut Agama Islam Negeri Fattahul Muluk Papua
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Penerapan Model Problem Based Learning (PBL) sebagai Upaya Meningkatkan Minat Belajar pada Mata Pelajaran Matematika Peserta didik Kelas VI SD Negeri 2 Tanah Merah amri
Pedagogi: Jurnal Pendidikan Dasar Vol. 12 No. 1 (2024): April 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/pdg.v12i1.696

Abstract

: Hasil observasi pada sebagian guru di SD Negeri 2 Tanah Merah diketahui bahwa minat belajar peserta didik masih rendah dalam pembelajaran matematika terkhusus pada materi pecahan. Selain itu, peserta didik mengalami kesulitan dalam mengidentifikasi konsep matematika ketika proses pembelajaran. Hal ini disebabkan oleh rendahnya motivasi belajar peserta didik, faktor lingkungan yang kurang mendukung, dan guru yang belum optimal dalam menerapkan model pembelajaran inovatif ketika pembelajaran. Inovasi dalam penerapan model pembelajaran penting dilakukan guna meningkatkan minat peserta didik dalam belajar dan memberikan pengalaman yang bermakna bagi peserta didik. Penelitian ini bertujuan untuk mengetahui hasil dari penerapan model Problem Based Learning (PBL) terhadap Keterampilan Berpikir Tingkat Tinggi dan Minat Belajar pada Mata Pelajaran Matematika Peserta didik di SD Negeri 2 Tanah Merah. Metode penelitian yang digunakan adalah metode deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data yang digunakan adalah melalui observasi langsung dan eksperimen penerapan model pembelajaran yang dilakukan di SD Negeri 2 Tanah Merah. Studi literatur dan studi dokumentasi dilakukan untuk mendapatkan berbagai data pendukung yang diperoleh dari jurnal yang relevan dengan penelitian yang dilakukan. Hasil penelitian menunjukan bahwa penerapan model pembelajaran Problem Based Learning (PBL) dapat meningkatkan keterampilan berpikir dan minat belajar peserta didik pada pembelajaran Matematika materi pecahan. Hal ini dibuktikan dari hasil observasi setelah kegiatan pembelajaran menggunakan model Problem Based Learning (PBL) peserta didik terlihat lebih aktif dalam proses pembelajaran. Selain itu apabila dilihat dari respon pihak sekolah seperti dari kepala sekolah dan rekan sejawat yang memberikan respon positif serta memberikan masukan terhadap proses pembelajaran yang dilaksanakan. Kemudian faktor keberhasilan lain ditentukan pada penguasaan media, metode, model, dan langkah pada saat proses pembelajaran berlangsung.
Comparative Assessment of Procion Red Removal Using Magnetite-Based Composites with Humic Acid, Activated Charcoal, and Lignin Ahmad, Nur; Wijaya, Alfan; Amri
Indonesian Journal of Material Research Vol. 3 No. 3 (2025): Future Issue: November
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20253368

Abstract

This investigation presents the synthesis and comparative assessment of three magnetite-based composite adsorbents, including Magnetite Humic Acid (MA), Magnetite Activated Charcoal (MB), and Magnetite Lignin (MC), aimed to remove Procion Red (PR) from aqueous solutions. The characterization of the materials was conducted through XRD, BET, and FTIR analyses, which validated the successful synthesis of magnetite and its interactions with the respective organic components. The point of zero charge (pHpzc) values obtained were 4.75, 5.09, and 4.10 for MA, MB, and MC, respectively. Adsorption experiments were performed under these pHpzc conditions to mitigate electrostatic influences. Kinetic investigations demonstrated that the adsorption process adhered to a pseudo-second-order model, signifying that chemisorption was the prevailing mechanism. Furthermore, the Langmuir isotherm yielded the most accurate representation of the equilibrium data, implying the occurrence of monolayer adsorption. MB demonstrated the highest adsorption capacity of PR, recorded at 52.632 mg/g at a temperature of 50oC. This observation underscores the benefits associated with its elevated surface area and the effective dispersion of Fe3O4 particles within the activated carbon matrix. The comparative analysis elucidates the impact of organic matrix selection on surface characteristics, interaction dynamics, and the overall efficacy of adsorption processes. This study presents novel findings regarding the development of natural carbon-magnetite composites aimed at enhancing the efficiency of dye removal processes.
Co-Authors Abd Syakur Aga Sekamdo, Muhammad Ahmad Muktamar B Akhmad Dahlan Aldes Lesbani Anjelika, Fara Annisa Almeida Asep Suryana Asri Syahfitri ASWANDI Athoillah Islamy Bakhtiar Bambang Edi Tilarsono Darwanis Dwi Ajeng Maulidya Makalao Dwi Ratna Cinthya Dewi Dwi Ratna Cinthya Dewi Dyah Margo Mukti Elfita Elisa Febriyanti Faisal Fatimah Febiansyah, Hidayat Fikriyah, Durrotul Guntur Syahputra, Guntur Halim, Hendra Hanifah, Yulizah Harahap, M. Guffar Haris Riyaldi, Muhammad Hendra Yulia Rahman, Hendra Yulia Husnul Yaqin Ikhsan Indrawati Iskandarsyah Isnanto, Burham Kasmawati Kesi Khairul Anshar Luthfia Permatasari M. Shabri Abdul Majid M. Thohar Al-Abza M. Zarkasyi Mahdi Malini Lubis, Fatimah Meutia, Sri Mirna Indriani Moh. Ali Muhamad Yusuf Muhammad Adam Muhammad Habibbullah Muhammad Haris Riyaldi Muhammad Riska Muhammad Syahrizal, Teuku Muhd. Hayyanul Damanik Muhksin, Ali Murkhana Nada Syiva Salsabila Nasir, Yusrianto Nazirah Al Zany Nizam, Ahmad Noor Azuddin Yakob Noprian, Reza Nova Yuliasari Nur Ahmad, Nur Nur Ismirawati, Nur Nurma Sari, Nurma Nurul Wardani Fadhilah Pebi Juliyanti Pebrijah Nasution Putri, Bunga Indah Rachmad Surya Muhandy Rachmawaty Rahmat Idhami Ramadhani Randi, Nur Zakiyah Rasyik Adila Renaldi Reni Reni, Reni Rida Raihati Miska Ris Akril Nurimansjah Risfidian Mohadi Safiudin Safiudin Sariroh, St Sartiyah Sidanatul Janah Siti Aminah Stephen Martin Syahriyal Taufiq Akbar Taufiq Carnegie Dawood Tresnawan Maulana Umuri, Khairil Usiono Wijaya, Alfan Yopi Yudha Utama Yulianti Yuliza Hanifah Yunita Syahfitri