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Teguh Wibowo
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Jl. Prof. Dr. Hamka Km. 02 Semarang, Indonesia
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Journal of Educational Chemistry (JEC)
Published by Universitas Islam Negeri Walisongo Semarang
ISSN : 27153029     EISSN : 26854880     DOI : http://dx.doi.org/10.21580/jec.2020.2.1.5512
Core Subject : Science, Education,
Chemistry Education
Journal of Educational Chemistry (JEC) is a journal managed by Program Studi Pendidikan Kimia Fakultas Sains dan Teknologi Universitas Islam Negeri Walisongo Semarang (the Chemistry Education Department of Science and Technology Faculty, Walisongo State Islamic University). This Journal aims to accommodate all the writings of theoretical studies and research in the field of chemical education. This journal is published twice a year. Researchers and educational practitioners are welcome to disseminate their writings through this journal. Scope of writings published in this journal include: Learning chemistry Evaluation of chemistry education Chemistry education policy Integrating islamic value in chemistry education
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 142 Documents
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Development of Learning Media Containing Socio Scientific Issue (SSI) to Improve Science Literacy Abilities in Green Chemistry Subject Hanun Zahrotun Nisa; Julia Mardhiya; Apriliana Drastisianti
Journal of Educational Chemistry (JEC) Vol. 8 No. 1 (2026)
Publisher : Department of Chemistry Education, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

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Abstract

This study aims to develop and test the validity of learning media incorporating Socio-Scientific Issues (SSI) in green chemistry to improve students’ science literacy. The development of SSI-based media for green chemistry has not been sufficiently explored, even though this subject matter is conceptual and complex, causing students to often struggle to understand the concepts and relate them to everyday life. This study employed the Research and Development (R&D) method using the 4D development model, which includes the define, design, develop, and disseminate stages. The research subjects were 38 students in class X-J at SMAN 1 Cikampek. Data were collected using an expert validation questionnaire, a student response questionnaire, and a science literacy test in the form of essay questions. The results indicate that the instructional media achieved a high level of validity, with an Aiken’s V index of 0.89 from subject matter experts and 0.87 from media experts, thereby being deemed valid for use in instruction. Student responses to the media yielded excellent results, with an average percentage of 84.42%. Based on the paired sample t-test, a significance value of 0.000 < 0.05 was obtained, indicating a significant difference between students’ pretest and posttest scores. The effectiveness of the media was further supported by an N-Gain score of 0.6056 or 60.56%, which falls into the moderate category.  Based on these findings, the SSI-based learning materials were found to be valid, practical, and sufficiently effective in improving students’ science literacy in the area of green chemistry.
The Application of Video Assisted Discovery Learning Models to Improve Critical Thinking Skills Mutia Shafira; Luki Yunita; Miessya Wardani
Journal of Educational Chemistry (JEC) Vol. 8 No. 1 (2026)
Publisher : Department of Chemistry Education, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

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Abstract

Students' critical thinking skills in science education, especially chemistry, are still relatively low due to a learning process that tends to be teacher-centered and the use of learning media that has not been optimally utilized. One effort to improve critical thinking is through the application of a video-assisted discovery learning model. This study aims to describe the improvement in students' critical thinking skills through the application of a video-assisted discovery learning model on buffer solution material. This study uses a descriptive approach with quantitative methods. The research sample consisted of 30 students in class XII Sainkes 1 SMAN 1 Parung in the 2024/2025 academic year, selected using purposive sampling techniques. The instrument used was an essay test based on five aspects of critical thinking according to Ennis. Data analysis techniques were carried out descriptively and quantitatively with the help of Microsoft Excel to process and present the data in the form of percentages. The results showed that students' critical thinking skills improved in the posttest, with percentages of 64.39% in providing simple explanations, 65.92% in building basic skills, 69.46% in drawing conclusions, 75.69% in providing further explanations, and 68.33% in organizing strategies and tactics. These findings indicate that the application of the video-assisted discovery learning model can improve students' critical thinking skills in buffer solution material.

Page 15 of 15 | Total Record : 142

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