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All Journal Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Tekno - Pedagogi : Jurnal Teknologi Pendidikan Sainmatika: Jurnal Sains dan Matematika Jurnal Penelitian Pendidikan IPA (JPPIPA) Martabe : Jurnal Pengabdian Kepada Masyarakat Journal of Educational Research and Evaluation WIDYA LAKSANA Jurnal Review Pendidikan dan Pengajaran (JRPP) Community Development Journal: Jurnal Pengabdian Masyarakat Journal for Lesson and Learning Studies Dulang: Jurnal Pengabdian Kepada Masyarakat Journal International of Lingua and Technology Al Jahiz: Journal of Biology Education Research Innovative: Journal Of Social Science Research SABAJAYA Jurnal Pengabdian Kepada Masyarakat Salus Publica JUPEMA Biodik: Jurnal Ilmiah Pendidikan Biologi International Journal of Education, Vocational and Social Science Educational Leadership and Management Journal
Mia Aina
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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UJI KUALITATIF VITAMIN C PADA BERBAGAI MAKANAN DAN PENGARUHNYA TERHADAP PEMANASAN Aina, mia; Suprayogi, Dawam
Jurnal Sains dan Matematika Vol. 1 No. 1 (2020): Jurnal Sain dan Matematika
Publisher : PMIPA FKIP UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/sainmatika.v3i1.1615

Abstract

Telah dilakukan penelitian tentang uji kualitatif kandungan vitamin C pada berbagai makanan, Dalam penelitian sederhana ini digunakan sampel antara lain jeruk nipis, tomat, wortel, bengkoang mentimun. Sebagai control digunakan tablet vitamin C 500gr diambil sebanyak 20 butir dilarutkan dalam 10 ml air.Sebagai indicator digunakan larutan betadine yang mengandung betadine mengandung povidone iodine 10% yang setara dengan iodine 1%. Iodine ini lah yang sebenarnya menjadi indikator, karena reaksi antara asam askorbat dalam vitamin C dan iodin akan menghilangkan warna dari iodine. Pengamatan yang dilakukan pada penelitian ini adalah perubahan warna dan jumlah tetesan larutan sampel.Semakin sedikit jumlah tetesan larutan sampel menunjukkan semakin tinggi kandungan vitamin C dalam sampel tersebut. Dari percobaan ini didapatkan kesimpulan bahwa kandungan vitamin C tertinggi berturut-turut adalah pada jeruk nipis, tomat, wortel dan mentimun. Bengkoang menunjukkan uji negative kandungan vit C, karena bengkoang mengandung amilum. Pemanasan akan mengurangi kadar vitamin C dalam makanan karena vitamin C rentan terhadap udara, cahaya, panas, serta mudah rusak selama penyimpanan.
Analisis Penerapan ESD dalam Pembelajaran IPA Daring Pada Masa Pandemi Covid-19 Mia Aina; Dalimawaty Kadir; Baso Intang Sappaile; Dara Mutiara Aswan; Asita Al Mufida
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3818

Abstract

Education for Sustainable Development (ESD) is a program designed to achieve sustainable development goals. In the 2013 curriculum, ESD has been used as one of the bases for teaching science to students. However, the existence of the Covid-19 outbreak in Indonesia has had an effect on science learning activities in junior high schools, so that face-to-face learning has been shifted to online learning. This study aims to analyze activities in online learning, the obstacles experienced by teachers and students, and their effectiveness in implementing ESD principles. The method used is descriptive qualitative to describe online learning at one of the Junior High School (SMP) and Islamic Junior High School (MTs) in West Java. The Researchers used data from the analysis of the teacher's lesson plan and semi-structured interviews with 2 teachers and 2 students. Data analysis was performed by reducing data, presenting data, and drawing conclusions. The results show that online learning is less effective in implementing ESD values because the material presented is limited and learning is only one-way (teacher center). Online learning is carried out using WhatsApp, Google Classroom, and e-learning media with obstacles in the form of internet network instability and a lack of student motivation. Therefore, it is hoped that the teacher can use a learning model that is more attractive, student-centered, and can implement the principles of ESD.
Assessing the Measurement Quality of a Model Lecturer TPACK Instrument: Evidence from Rasch Analysis Susanti, Nova; Iriani, Dewi; Aina, Mia
Educational Leadership and Management Journal Vol. 4 No. 1 (2026): Element - 2026
Publisher : FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/element.v4i1.56664

Abstract

Technological Pedagogical Content Knowledge (TPACK) is a fundamental competency for educators in integrating technology, pedagogy, and content knowledge into effective teaching practices. Ensuring the psychometric quality of TPACK instruments is therefore essential for obtaining accurate and reliable measurement results. This study aimed to evaluate the measurement quality of a TPACK instrument for model lecturers using Rasch Measurement Theory. A quantitative survey design was employed involving 32 respondents who completed a 25-item TPACK questionnaire using a four-point Likert scale. Data were analyzed using WINSTEPS to examine respondent reliability, item reliability, item fit, item difficulty, and rating scale functioning. The results indicated excellent respondent reliability (0.91) and person separation (3.24), demonstrating that the instrument effectively differentiated respondents across multiple competency levels. However, item reliability (0.45) and item separation (0.91) revealed limited variation in item difficulty. The item difficulty measures ranged from −0.68 to 1.43 logits, with PCK4 identified as the most difficult item and TK1 and TK4 as the easiest. Most items fit the Rasch model, although several items (CK1, CK2, PK3, PCK4, and TPACK1) exhibited misfit characteristics requiring revision. Rating scale analysis showed that the four-point Likert categories generally functioned as intended, but response concentrations in the upper categories suggested a potential ceiling effect and limited discrimination among higher-ability respondents. The novelty of this study lies in the comprehensive application of Rasch Measurement Theory to evaluate a TPACK instrument within a Lesson Study context. The findings provide empirical evidence for improving instrument quality through item refinement, broader difficulty calibration, and optimization of response categories. This study contributes to the development of more valid and reliable assessment tools for measuring technology integration competencies in physics education and professional development programs.
Co-Authors Aat Ruchiat Nugraha Aceng Haetami, Aceng Afreni Hamidah Afrizal Afrizal Ahmad A Ainun Mardiah Ali Rahman Ali Sadikin Almira Ulimaz Amsal Sahban, Muhammad ANDRI KURNIAWAN aniati Arif Saefudin Arifin Arifin Aswan, Dara Mutiara Aulia Sanova Bambang Ismaya Bambang Mardi Sentosa Baso Intang Sappaile Budi Utami Budiarti, Retni Sulistiyoning Dalimawaty Kadir Damris Muhammad Dani, Rahma Dara Mutiara Aswan Dasep Supriatna Dawam Suprayogi Desi Fitria Dewi Iriani Diah Riski Gusti Ellina Rienovita Evita Anggereini Hamidah . Hersiyati Palayukan Ika Yuniwati, Ika Indriani, Lely Indryani, Indryani Intan Lestari Jemmy, Jemmy Joshua, Wang Lisani, Lisani Martina Asti Rahayu Mayasari Mayasari, Mayasari Mufida, Asita Al Muhammad Abdun Jamil Muhammad Nur Muswita Musysd, Danial Muthia, Gusti Ayu Nainggolan, Rina Aprianti Nasrul Hakim Natalia, Desfaur Nova Susanti Putranto, Algooth Putri, Desi Ariani Ratna Dewi Rembe, Elismayanti Retni S. Budiarti Rifky Lana Rahardian Rosidin , Rosidin Saifullah Saifullah Santosa, Tomi Apra Sembiring, Tamaulina Br. Siti Khoiriah Sitti Nadirah Solissa, Everhard Markiano Sopacua, Venty Sukini, Sukini Suryati Suryati Suseno, Rahayu Wahdah, Wahdah Wahyu Kumala Sari Yeliyanti, Upik Yulfita Farni Yuli Rohmiyati