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All Journal Jurnal Inovasi Teknik Kimia Edukimia Integrated Science Education Journal
Ramadani, Pino
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Chemical Engineering, Chemistry & Bioengineering Education Social Sciences Other

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Kajian Literatur Jenis Asesmen dalam Pembelajaran Kimia Ramadani, Pino; Hilalliyah, Nur; Maulina, Tiara; Syahputri, Salsabila Dia; Ridwansyah, Muhammad; Rahmadani, Agung
Edukimia Vol 7, No 1 (2025): Edukimia - Vol. 07, Issue 01
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ekj.v7.i1.a569

Abstract

Pembelajaran kimia di sekolah sering kali menggunakan teknik asesmen yang kurang tepat untuk mengukur hasil belajar. Pendidik memerlukan asesmen yang tepat untuk mengevaluasi hasil belajar peserta didik yang ingin diukur. Tujuan kajian literatur ini untuk mengidentifikasi jenis-jenis asesmen dalam pembelajaran kimia. Metode yang digunakan ialah narrative literature review. Terdapat 6 jenis asesmen yang dapat digunakan dalam mengevaluasi hasil belajar dalam pembelajaran kimia. Jenis asesmen tersebut yakni asesmen formatif, sumatif, diagnostik, autentik, teman sejawat, dan diri. Setiap asesmen dapat mengukur hasil belajar yang berbeda-beda. Penggunaan teknik asesmen yang tepat dapat membantu pendidik dalam mengevaluasi kelebihan dan kekurangan selama proses pembelajaran kimia sehingga ketercapaian tujuan pembelajaran kimia dapat dievaluasi
PEMANFAATAN KARBON SISA HASIL PEMBENTUKAN KRISTAL LIMBAH TULANG IKAN TENGGIRI (SCOMBEROMORUS COMMERSON LACEPEDE) DAN IKAN BELIDA (CHITALA LOPIS) UNTUK MENGADSORPSI ZAT WARNA SINTETIK CONGO RED Ramadani, Pino; Fransiska, Firnanda Zuni; Putri, Aisyah Adinda; Maharani, Tiara; Syahputri, Salsabila Dia; Rahmadani, Fitri Nur; Wirhanuddin, Wirhanuddin; Nurhadi, Mukhamad
Jurnal Inovasi Teknik Kimia Vol. 10 No. 3 (2025): July | INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v10i3.13027

Abstract

To date, industrial wastewater treatment efforts have largely relied on conventional methods that are sensitive to environmental changes and less effective in degrading complex dyes such as Congo Red. One promising alternative approach is adsorption using biomass-based activated carbon, including waste derived from fish bones. This study aims to investigate the properties, surface characteristics, and adsorption mechanism of residual carbon obtained from crystal formation processes using waste bones of mackerel and featherback fish for Congo Red removal. The methodology involved carbonization at 500 °C, followed by sulfonation with concentrated H₂SO₄, and adsorption experiments with varying carbon particle size, contact time, and initial Congo Red concentration. The results demonstrate that fish bone waste carbon is highly effective in adsorbing Congo Red, with removal efficiency increasing with contact time and reaching equilibrium within 10 minutes at 99.8%. The optimum particle size was 200 mesh, and the maximum adsorption capacity was observed at Congo Red concentrations below 600 mg L⁻¹. Isotherm analysis revealed that the adsorption process follows the Langmuir model, with a maximum adsorption capacity of 16,666.6 mg g⁻¹. Meanwhile, kinetic data indicated that the adsorption behavior conforms to a pseudo-second-order model, with a rate constant of 666.6 g mg⁻¹ h⁻¹ at 25 °C.
Design and Validation of a Contextual Project-Based Organic Chemistry Practicum Module for Undergraduate Learning Ramadani, Pino; Watulingas, Maasje Catherine; Erika, Farah; Rahmadani, Agung; Khoirunnisa, Fitriah
Integrated Science Education Journal Vol 7 No 2 (2026): March
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v7i2.2603

Abstract

Purpose of the study: This study aims to design and validate a project-based organic chemistry practicum module that integrates a contextual approach, which is designed to facilitate students’ conceptual understanding, practical skills, engagement, learning motivation, and overall learning experience during laboratory practicum activities. Methodology: This study employed the Research and Development (R&D) method utilizing the ADDIE model specifically for the Analysis, Design, and Development stages. It represents early development phase focused on design and expert validation. Data were collected through interviews and questionnaires. Module validation carried out by subject matter and media validators using Likert scale instruments and Gregory matrix calculations to ensure validity. Main Findings: This study’s project-based, contextually integrated organic chemistry practicum module operationalizes PjBL through structured stages. Contextual learning integrates authentic phenomena with real-world applications. Validation involved two subject matter and two media validators, yielding Gregory coefficients of 1.00 for both. The module is highly valid, and future studies should test its effectiveness and practicality in enhancing conceptual understanding or 21st-century 4C skills. Novelty/Originality of this study: This study developed an organic chemistry practicum module that systematically integrates contextual phenomena across all PjBL phases. Unlike previous PjBL modules lacking contextual integration or conventional recipe-style modules with limited learning impact. This module addresses gaps in conceptual reasoning, contextual relevance, and competency, while reducing procedural learning and enhancing conceptual understanding, practical skills, 21st-century skills, and integrated science learning.
Co-Authors Farah Erika Fitri Nur Rahmadani Fitriah Khoirunnisa Fransiska, Firnanda Zuni Hilalliyah, Nur Maulina, Tiara Muhammad Ridwansyah Mukhamad Nurhadi, Mukhamad Putri, Aisyah Adinda Rahmadani, Agung Syahputri, Salsabila Dia Tiara Maharani, Tiara Watulingas, Maasje Catherine Wirhanuddin, Wirhanuddin