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All Journal Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia SAINTIFIK@ : Jurnal Pendidikan MIPA Jurnal IPA Terpadu Jurnal Pendidikan Kimia (JPKim) Jurnal Riset Kefarmasian Indonesia Journal On Teacher Education (Jote) EduLine: Journal of Education and Learning Innovation Arfak Chem: Chemistry Education Journal Proceeding International Conference on Malay Identity Jurnal Pendidikan Kimia Unkhair (JPKU) Prosiding Seminar Nasional Orientasi Pendidik dan Peneliti Sains Indonesia Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo
Rahman, Nurul Aulia
Chemistry Education Study Program, Khairun University, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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EKSPLORASI KEARIFAN LOKAL KHAS BORNEO: BIOSINTESIS NANOPARTIKEL PERAK EKSTRAK  ETANOL DAUN KOKANG (Lepishanthes amoena (Hass) Leenh) Aminah; Rahman, Nurul Aulia; Amalia, Sindi; Hardiani, Lia; Khairunnisa, Annida; Jubaidah, Siti; Puspita, Alfiana Dwi
Jurnal Riset Kefarmasian Indonesia Vol. 6 No. 2 (2024): Jurnal Riset Kefarmasian Indonesia
Publisher : APDFI (Asosiasi Pendidikan Diploma Farmasi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33759/jrki.v6i2.528

Abstract

Biosynthesis of silver nanoparticles (AgNP) is a process of changing Ag+ ions to Ag0. The biosynthesis method in this research is green synthesis using natural ingredients to reduce silver, this synthesis is safer, environmentally friendly and economical. Based on this, this research aims to determine the optimal reaction conditions in the biosynthesis process using ethanol extract from cock leaves. The research method carried out pH optimization with variations of 8, 9, and 10 and then obtained the best pH, where the pH optimization will later be used in the AgNO3 optimization process with variations of 1mM, 2mM, and 4mM. After obtaining the best Ag optimization, the next stage was extract optimization using variations of 0.5%, 1% and 2%, the results of which will be seen based on the SPR peak of 400-500 nm which indicates the formation of AgNPs. The results of the research showed that AgNPs from cockang leaf ethanol extract were able to reduce at pH 8, AgNO3 2mM and 4mM, as well as 0.5% extract, and the contact time reaction showed a good formula for AgNP 1, AgNP2, AgNP3 which was indicated by the absorbance intensity at long waves that form AgNPs at the SPR peak of 400-500. Based on the results of SEM characterization, the morphology at a concentration of 2 mM has a surface that is not very smooth and the size is not very uniform, but at a concentration of 4 mM the surface is smooth and the particles are not uniform. With particle sizes in the range of 50-80 nm.
The Influence of Project-Based Learning Model on SSI North Maluku on Students' Critical Thinking Skills in Atomic Structure Material Nurul Aulia Rahman; St. Hayatun Nur Abu
Arfak Chem: Chemistry Education Journal Vol. 9 No. 1 (2026): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v9i1.1272

Abstract

The Influence of This study is an experimental study that aims to see the effect of the SSI local-oriented project-based learning model on students' critical thinking skills on atomic structure materials. The SSI local referred to in this study focuses on social issues in North Maluku. The research design is a one-group pretest-posttest. The sample was selected using a simple purposive sampling technique. Data collection techniques, including tests, were used to measure students' critical thinking skills, and non-test techniques, such as observation sheets, were used to observe the implementation of the SSI locally oriented project-based learning model. The results of the learning observations in the outstanding category, with a 83% percentage. The comparison of pretest and posttest results for students' critical thinking skills also showed a significant increase, reaching 36,19%. The results of the normality test showed sig = 0.200, indicating that the data were normally distributed. The results of the paired-samples T-test showed sig = 0.00; H0 was rejected, and H1 was accepted. Thus, the SSI-oriented PjBL model affects students' critical thinking skills regarding the atomic structure of materials. Project-Based Learning Model on SSI North Maluku on Students' Critical Thinking Skills in Atomic Structure Material
Pengaruh Penerapan Model Problem Based Learning Berbantuan Media Prezi Terhadap Efektivitas Belajar Siswa SMA Negeri 4 Kota Ternate Pada Materi Titrasi Asam Basa Wahyu Yusup Duwila; Abdul Rasyid Saraha; Fitriana Ibrahim; Nurul Aulia Rahman
Jurnal Pendidikan Kimia Unkhair (JPKU) Vol 2 No 1 (2022): Jurnal Pendidikan Kimia Unkhair (JPKU)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jpku.v2i1.5017

Abstract

AbstrakPengaruh Penerapan model Problem Based Learning (PBL) berbantuan media Prezi terhadap efektivitas belajar siswa SMA Negeri 4 Kota Ternate pada Materi Titrasi Asam Basa. Pembimbing Abdul Rasyid Saraha dan Fitriana Ibrahim. Penelitian ini dilakukan untuk mengetahui Pengaruh Penerapan model Problem Based Learning (PBL) berbantuan media Prezi terhadap efektivitas belajar siswa SMA Negeri 4 Kota Ternate pada Materi Titrasi Asam Basa dan besar pengaruh penerapan model Problem Based Learning (PBL) berbantuan media Prezi terhadap efektivitas belajar siswa SMA Negeri 4 Kota Ternate pada Materi Titrasi Asam Basa. Jenis penelitian ini adalah penelitian eksperimen menggunakan design penelitian One Group Pretest-Posttest Design. Populasi dalam penelitian ini adalah seluruh siswa kelas XI IPA SMA Negeri 4 Kota Ternate pada tahun ajaran 2022/2023 yang berjumlah 31 siswa yang terdiri hanya satu kelas. Teknik pengambilan sampel yang digunakan ialah sampel jenuh atau semua populasi dijadikan sampel, dengan jumlah sampel 31 siswa. Instrumen tes yang digunakan dalam penelitian ini berupa soal essay yang berjumlah 12 item yang digunakan untuk menghitung evektifitas belajar kognitif siswa. Teknik analisis data adalah teknik analisis statistik deskriptif dan analisis statistik inferensial menggunakan SPSS For Windows Version 21.0. Hasil uji Hipotesis dalam penelitian ini diperoleh sig < 0,05 atau 0,000 < 0,05, thitung > ttabel atau 21,142 > 2,042 maka Ha diterima dan Ho ditolak. Besar pengaruh model PBL berbantuan medaia prezi terhadap efektivitas belajar siswa diperoleh dari nilai gain 0,84 (kategori tinggi).Kata Kunci : Efektivitas Belajar, Problem Based Learning, Titrasi Asam Basa AbstractThe effected of applying the Problem Based Learning (PBL) model with the helped of Prezi media on the learning effectiveness of students at SMA Negeri 4 Kota Ternate on Acid-Base Titration Materials. Advisors Abdul Rasyid Saraha and Fitriana Ibrahim. This study was conducted to determine the effect of applying the Problem Based Learning (PBL) model with the helped of Prezi media on the learning effectiveness. This type of research was an experimental study using a research design of One Group Pre-test Post-test Design. The population in this research were all students of class XI IPA SMA Negeri 4 Kota Ternate in the academic year 2022/2023, totaling 31 students consisting of only one class. The sampling technique used is a saturated sample or all of the population is sampled, with a sample of 31 students. The test instrument used in this research was in the form of essay questions totaling 12 items which were used to calculate students cognitive learning effectivess. Data analysis techniques are descriptive statistical analysis techniques and inferential statistical analysis using SPSS For Windows Version 21.0. The results of the hypothesis test in this research obtained sig < 0.05 or 0.000 < 0.05, tcount > t table or 21,142 > 2,042 then Ha is accepted and Ho is rejected. The large influence of the PBL model assisted by the media prezi on the effectiveness of student learning is obtained from the gain value of 0.84 (high category). Keywords:Learning Effectiveness, Problem Based Learning, Acid Base Titration. 
Feasibility of Simple Practical Project Tools Based on Local Wisdom as a Strategy to Improve Students' Science Process Skills Nurul Aulia Rahman; St. Hayatun Nur Abu; Ilham SW Mauraji
Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo Vol. 10 No. 3 (2025): December 2025
Publisher : Jurusan Pendidikan Kimia Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jpkim.v10i3.215

Abstract

This research aims to develop learning tools in the form of teaching modules , Student Worksheets (LKPD), observation sheets for process skills. Project-Based Learning- based science with the integration of simple practicums based on local wisdom of North Maluku to improve students' science process skills. The method used is development research with the 4D model (Define, Design, Develop, Disseminate), up to the develop stage . The define stage includes needs analysis, content analysis, and material analysis, indicating the need for contextual learning tools based on local wisdom. The design stage produces an initial draft of the teaching module and student worksheet containing contextual material. These tools are designed in line with the learning outcomes of the Independent Curriculum and indicators of science process skills. The design results will be validated at the develop stage before being widely tested. The validation results show that the teaching module and observation sheet for science process skills are in the valid category, while the student worksheet is in the very valid category.
Co-Authors Abdul Rasyid Saraha Abu, St Hayatun Nur Abu, St. Hayatun Nur amalia, sindi AMINAH Amrullah Umar Bundu, Patta Burhami, Harfani Dewi Satria Ahmar Eka Fitriana Hamsyah Epinita Pardi Erwinda R. Koroy Erwinda RK Fitriana Ibrahim Gustiana Gustiana, Gustiana Gustina Gustina Gustina Gustina Hamzah, Eka Fitriana Hardiani, Lia Ilham SW Mauraji Indra Cipta Khadijah Khadijah Khairunnisa, Annida Liestianty, Deasy Mauraji, Ilham S. W Merlin Merlin, Merlin Muhammad Agus Muljanto Muliadi Muliadi Mutiara Yoisangadji Nur A Limatahu Nur A Limatahu Nur A. Limatahu Nur Abu, St. Hayatun Nur Asbirayani Limatahu Nur Indah Sari Nur Jannah Baturante Nurfatimah Sugrah Nurjanah Baturante Puspita, Alfiana Dwi Sabar, Sumiyati Setiawan, Topan Siti Jubaidah, Siti St. Hayatun Nur Abu Sudir Umar Sudir Umar Sudir Umar Wahyu Yusup Duwila