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All Journal KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Prosiding Konferensi Nasional PKM-CSR
Alvince Stevani Lase
Universitas Lambung Mangkurat
Humanities Chemistry Control & Systems Engineering Economics, Econometrics & Finance Education Environmental Science Nursing Public Health Social Sciences

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ANALISIS PROFIL PEMAHAMAN KONSEP PESERTA DIDIK BERDASARKAN REPRESENTASI KIMIA PADA MATERI FAKTOR-FAKTOR YANG MEMPENGARUHI LAJU REAKSI Alvince Stevani Lase; Try Sepakat Zalukhu
KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Vol 9 No 1 (2026): Jurnal Katalis Volume 9 Nomor 1 Tahun 2026
Publisher : Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/katalis.v9i1.13466

Abstract

Students’ understanding of the factors that influence reaction rates remains challenging due to the abstract nature of the concepts and the cognitive demand of integrating multiple levels of chemical representation. This study aims to map students’ conceptual understanding profiles based on chemical representations in the reaction rate material. The research employed a descriptive method with a quantitative approach involving 64, class XI-1 and XI-2. Data were collected using a four-tier diagnostic test and analyzed based on understanding categories, representational abilities, and subtopics. The results show that only 44.66% of students were in the concept-understanding category, while 20.70% partially understood the concepts, 35.16% did not understand the concepts, and 27.34% exhibited misconceptions. Further analysis revealed that the microscopic representation was the largest source of errors, with 22.40% falling into the non-understanding category and 21.61% into the misconception category. Understanding based on subtopics also varied, with misconceptions reaching 31.25% in the temperature subtopic and 26.56% in the surface-area subtopic. These findings highlight that low representational ability is directly associated with high levels of misconceptions. The study recommends strengthening representation-based learning and employing continuous diagnostic assessment to improve students’ conceptual structures.
DETERJEN ECOENZYME LOKAL: TRANSFORMASI LIMBAH NANAS UNTUK KEMANDIRIAN EKONOMI DESA TINGGIRAN DARAT Mahdian Mahdian; Parham Saadi; Rizal Iskandar; Rusmansyah Rusmansyah; Mohamad Nor Aufa; Husnul Khatimah; Alvince Stevani Lase
Prosiding Konferensi Nasional Pengabdian Kepada Masyarakat dan Corporate Social Responsibility (PKM-CSR) Vol 8 (2025): Penguatan Ekonomi Masyarakat Berbasis Ekologis untuk Mencapai Keberlanjutan Menuju Ind
Publisher : Asosiasi Sinergi Pengabdi dan Pemberdaya Indonesia (ASPPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37695/pkmcsr.v8i0.2746

Abstract

Tinggiran Darat Village, Barito Kuala Regency, possesses significant pineapple production potential but faces challenges in utilizing pineapple peel waste and fluctuating market prices for pineapples. Inadequate waste management poses a risk of environmental pollution. The Community Empowerment Partnership Program (PKM) aims to empower pineapple farmers by transforming pineapple peel waste into economically valuable products, including ecoenzyme and environmentally friendly liquid detergent soap. Adopting a participatory approach based on green economy principles, the program involved 35 members of the Family Welfare Movement (PKK) and youth organizations. The proposed solutions included intensive training and continuous mentoring in the production of ecoenzyme from pineapple waste, product diversification into environmentally friendly detergents, and the introduction of effective marketing strategies. The program implementation was met with high enthusiasm from participants, evidenced by their active engagement in Q&A sessions and full involvement in practical activities. Evaluation using pre-test and post-test questionnaires demonstrated a significant increase in participants' average understanding scores. Furthermore, community perception of detergent products derived from ecoenzyme ingredients was positive. Consequently, this activity has successfully had a positive impact on the Tinggiran Darat community in managing organic waste, while fostering a sustainable economy through local innovation.
Co-Authors Khatimah, Husnul Mahdian Mahdian Mohamad Nor Aufa Parham Saadi Rizal Iskandar Rusmansyah Rusmansyah Try Sepakat Zalukhu