Article Per Year (5 Year)
p-Index From 2021 - 2026
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All Journal Journal of Computer for Science and Mathematics Learning Journal of Education for Sustainable Development Studies
Moersilah Moersilah
Department of Chemistry Education, Universitas Negeri Jakarta, Indonesia
Education Environmental Science Mathematics Social Sciences Other

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The Influence of Green Chemistry Activities on Students’ Environmental Care Attitudes Denisa Ajeng Retno Anggraeni; Moersilah Moersilah
Journal of Education for Sustainable Development Studies Vol. 1 No. 1 (2024): Journal of Education for Sustainable Development Studies
Publisher : Scientia Publica Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70232/b8rkjq30

Abstract

This study aims to investigate the effect of green chemistry activities on students’ environmental care attitudes. A quasi-experimental with a pretest-posttest control group design was used in this study. The participants were 44 eleventh-grade students at a public school in West Java, Indonesia. Two intact classes were randomly assigned to the control group (n=19) and the experimental group (n=25). Control group students carried out traditional experiments, while experimental group students carried out green chemistry experiments. The data obtained were analyzed using independent samples t-test and paired samples t-test. The results of the independent samples t-test (ɑ=5%) show that the p values obtained for the pretest and posttest scores are 0.189 and 0.037, respectively. In addition, the results of the paired samples t-test indicated that the p-values for the control and experimental groups were 0.349 and 0.000, respectively. This shows that there is a significant difference in the environmental care attitude score between the two groups in favor of the experimental group. The experimental group also showed a greater increase in scores than the control class after treatment. It can be concluded that green chemistry experiments and activities are effective in promoting the environmental care attitudes of eleventh-grade students on the topic of acids and bases. It is suggested to teachers use the green chemistry curriculum on other topics to improve student learning.
Development of Learning Cycle 5E Practical Instructions on Acid-Base Titration Using Natural pH Indicators Based on Green Chemistry Apriliany Kartika Jani; Moersilah Moersilah
Journal of Computers for Science and Mathematics Learning Vol. 1 No. 2 (2024): Journal of Computer for Science and Mathematics Learning
Publisher : Scientia Publica Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70232/4eagx078

Abstract

This research aims to produce a learning media product in the form of a practical guide for the 5E learning cycle on acid-base titration material using natural pH indicators based on green chemistry that is valid and practical. The type of research used is Research and Development (R&D) with the Borg and Gall model using a descriptive quantitative method. The study was conducted from November 2021 to August 2022 at SMA N 53 Jakarta with 91 student respondents, eight teachers, three subject matter and language experts, and three media experts. The practical guide is equipped with a barcode to facilitate students’ access to videos, additional materials, and evaluation questions. The research results show that the pH range of the Red Shoot leaf extract is 2-5 with a color change from pink to yellow and 6-14 with a color change from yellow to brick red. The feasibility test results of the practical guide by the experts showed an average percentage of 85% for subject matter and language experts and 88% for media experts. The reliability test from the experts was categorized as “Very Reliable” with a value of 0.93 for both subject matter and language experts and media experts. The student trial results showed an average of 80% on a small scale and 90% on a large scale. The teacher trial results showed an average of 95% on a small scale. The trial results conclude that the practical guide for the 5E learning cycle on acid-base titration material using natural pH indicators based on green chemistry has met the criteria of “Very Good” and is suitable as a learning media. The attractive, innovative, and creative acid-base titration learning can use this practical guide as learning media.
Co-Authors Apriliany Kartika Jani Denisa Ajeng Retno Anggraeni