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Hydrogen: Jurnal Kependidikan Kimia
Published by Universitas Pendidikan Mandalika
ISSN : 23386487     EISSN : 26563061     DOI : Prefix 10.33394
Core Subject : Science, Education,
Chemistry Education
Hydrogen: The Chemistry Education Journal published by the Chemistry Education Study Program which contains articles raised from the results of conceptual research and studies in chemistry and chemistry education including education and learning, device development, media and learning models.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 618 Documents
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Development of E-Supplement Flipbook Material Amino Acid Compounds from Tampoi Fruit (Baccaurea Macrocarpa) Hidayat, Niko; Masriani, Masriani; Sasri, Risya; Enawaty, Eny; Erlina, Erlina
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 5 (2024): October 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i5.12958

Abstract

The purpose of this study was to determine the feasibility and response to E-Supplement Amino Acid in Tampoi Fruit (Baccaurea macrocarpa). This research method is research and development (R&D) with the ADDIE model consisting of analysis, design, development, implementation, and evaluation. The data collection technique in this study used measurement techniques with instruments, namely feasibility assessment sheets and response questionnaires. Data analysis used Guttman scale and average calculation. The feasibility of e-supplements was validated by two validators each. The results showed that the E-Supplement of Amino Acids in Tampoi Fruit (Baccaurea macrocarpa) has a feasibility level in the aspects of material, media, and language, which is very feasible (k = 100%). The average percentage of student responses to e-supplements is 90.94% with a very feasible category. So E-Supplement Amino Acids in Tampoi Fruit (Baccaurea macrocarpa) is very feasible to use and get a very good response from students.
Antioxidant Activity of Avocado Folium (Persea americana M.) Wusurwut, Fahriya; Hasnaeni, Hasnaeni; Waris, Risda
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13638

Abstract

Free radicals can be formed through normal cell metabolism events, malnutrition and as a result of responses to external influences such as pollution and ultraviolet rays. Free radicals can cause premature aging, therefore antioxidants are needed to prevent premature aging. Avocado folium (Persea americana M.) contain secondary metabolite compounds, namely alkaloids, saponins, tannins, glycosides and flavonoids in the form of quercetin, where flavonoid compounds can act as antioxidants. This study aims to determine the antioxidant activity of avocado leaf extract (P. americana M), using the (2,2-dihphenyl-1-picrylhdrazil) (DPPH)  method. The sample used in this research was avocado folium obtained from Southeast Maluku, Maluku Province). DPPH method with a UV-Vis spectrophotometer at a wavelength of 514 nm. The antioxidant activity of ethanol extract of avocado folium in this test is 112.410 µg / mL. The results of this study show that avocado folium extract has moderate antioxidant activity.
Aeration and Slow Sand Filter Technology in Drilling Well Water Treatment to Reduce TDS Levels Zulkarnaen, Muhammad Fauzi; Hatimah, Husnul
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13953

Abstract

The quality of borehole water is often affected by the high content of Total Dissolved Solids (TDS) which can disrupt human health and quality of life. This study examines the effectiveness of the combination of venturi aeration and slow sand filter technology in reducing TDS levels in boreholes in East Lombok, NTB. The priority is the use of venturi aeration and slow sand filtration in an integrated manner as a combined treatment for borehole water, which has not been widely explored in previous studies. This method offers a practical, cost-effective, and environmentally friendly solution to overcome high TDS levels, especially in rural areas and areas with limited resources. These findings provide a new perspective on optimizing water treatment technologies to improve community access to clean and safe water. Sampling was carried out from six different locations and initial TDS levels were measured. The borehole water was treated through venturi aeration for 1 hour to remove dissolved gases and organic compounds, followed by filtration using a slow sand filter to filter fine particles, microorganisms, and other dissolved compounds. The results showed that venturi aeration was able to reduce TDS by 6.8% to 17.9%, while the slow sand filter provided an additional reduction of 3.1% to 8.3%. The combination of these two methods resulted in a total reduction in TDS of 11.3% to 25.8%. The effectiveness of the treatment was influenced by the iron content in the air and the structure of the sand media. Data were analyzed using the ANOVA test to determine the significance of the reduction in TDS.
Integrating Constructivist and Inquiry Based Learning in Chemistry Education: A Systematic Review Suryati, Suryati; Adnyana, Putu Budi; Ariawan, I PutuWisna; Wesnawa, I Gede Astra
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 5 (2024): October 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i5.13571

Abstract

This study systematically examines the integration of constructivist and inquirybased learning (IBL) strategies in chemistry education, emphasizing their transformative potential for enhancing student engagement, conceptual understanding, critical thinking, and problem solving skills. Utilizing a systematic review methodology, 30 peer reviewed articles from credible databases such as Scopus and Web of Science were analyzed. The findings reveal that gamification, virtual reality (VR), molecular visualization, and guided inquiry significantly improve learning outcomes by contextualizing abstract concepts and fostering active participation. Gamification and VR were particularly effective at the high school and tertiary education levels, respectively, while inquiry based laboratory activities enhanced higher-order thinking skills. The analysis highlights the theoretical alignment of these strategies with constructivist principles and their practical application in modern pedagogy. Despite their benefits, challenges such as resource limitations and insufficient teacher training persist, hindering wider adoption. Addressing these barriers through professional development, resource investment, and innovative curriculum design is essential for maximizing the impact of constructivist and IBL approaches. This study provides actionable recommendations for educators, policymakers, and researchers, advocating for systemic changes to advance chemistry education in diverse learning contexts. By combining theoretical insights with practical applications, this research underscores the importance of active, inquiry driven learning environments for preparing students to excel in STEM fields.
Chemistry Game Cards as an Alternative Media for Learning: A Literature Review Nadila, Nadila; Enawaty, Eny; Erlina, Erlina; Masriani, Masriani
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 5 (2024): October 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i5.13130

Abstract

Along with many chemical game media studies in the last 5 years, therefore the purpose of this literature review is to provide the latest information regarding student perspectives on chemical game card media. The review was conducted by searching international articles from ScienceDirect, Pubmed, Mendeley Search, ERIC, ACS Publication and Springer Link databases related to articles published between January 2019 and September 2024. To ensure conclusions based on high-quality evidence with longitudinal studies with a sample of >500 articles within the last 5 years, the search resulted in 6,779 articles from 6 databases. With a total of 23 articles with student subjects and 18 articles with student subjects who expressed their opinions about chemistry games and 2 articles with review article subjects. Overall, students and university students stated that chemistry game activities are effective as an alternative fun learning media to increase student engagement, motivation and learning outcomes. However, in this review, it was found that the use of games integrated with the internet was less in secondary schools than in universities. Meanwhile, the use of chemistry games without internet integration in high school and college is relatively the same. Overall, the perspectives of students and college students showed a positive attitude towards chemistry games.
Development of Chemis 3D Augmented Reality Media for Discovery Learning Model in Chemical Bonding Sahrawati, Fiska; Danial, Muhammad; Salempa, Pince; Djangi, Muhammad Jasri
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13972

Abstract

The goal of this research and development (R&D) study was to develop a 3D Chemis media product that included cards and applications for three-dimensional display. The 4-D development model by Thiagarajan et al., which comprised the phases of defining, designing, developing, and distributing, was consulted in the creation of this 3D chemistry media. The study's findings included the following: 1) two media experts and two material experts' evaluations of the media's viability and validity fell into the extremely valid group; 2) During the limited testing phase, which involved 29 students from class X MIA 5 SMAN 16 Makassar, each student received an average learning outcome test score of 83.3 out of 100, with 86.2% of the class completing the course. Additionally, the evaluation of student motivation for this media fell into the very high category, suggesting that the media was effective; 3) both students' and teachers' responses to the developed learning media fell into the very high category, suggesting that the media was useful. Following a validation stage by experts and validators, development revisions, and a small number of trials, this learning material was found to be reliable, useful, and efficient. The Chemis 3D media model was shown to be reliable, useful, and efficient.
Development of Chemistry Edutainment Learning Media to Enhance Students Retention Nisa, Chairun; Kurniasih, Dedeh; Hadiarti, Dini; Kurniati, Tuti
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 5 (2024): October 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i5.12350

Abstract

The teaching media that a teacher uses can have an impact on the comprehension and memory of the students. Chemical bonding material is one of the learning resources that educators are encouraged to employ to assist and promote more creative, engaging, and enjoyable learning experiences. Chemistry Edutainment media is one type of educational resource that can be employed. This study attempts to characterize student learning retention following chemistry lessons using chemistry edutainment on chemical bond material for class X MAN 3 Pontianak, as well as to ascertain the validity, practicality, and efficacy of chemistry edutainment media. The methods of measurement, observation, and interviewing are employed in the data collection process. Student learning outcomes assessments, observation sheets, and interview sheets were the instruments utilized to collect the data. The study employs the ADDIE method, yielding validation rates of 93.3% for the material aspect and 90.6% for the media aspect. These percentages denote a high level of validity. The practicality percentages, derived from the initial and main field trial questionnaire responses, are 87.17% and 94.03%, respectively, indicating a high degree of practicality. Moreover, the effectiveness analysis, based on the learning outcomes following the use of Chemistry Edutainment media, resulted in N-Gain scores of 0.92 and 0.71 for the initial and main field trials, respectively, meeting the high effectiveness criteria. The retention percentages obtained in the initial and main field trials are 75% and 89.97%, respectively, which meet the high retention criteria.
Development and Characterization of Bioplastics from Straw and Rice Husk for: Effect of Addition of Glycerin, CMC, and TiO2 Hardi, Gilar Wisnu; Toruan, Sari Artauli Lumban; Dewi, Berlian Kusuma; Nurjanah, Suci; Nurohmat, Nurohmat; Rifai, Bagus Muhammad Ainul; Hidayat, Ahmad
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13821

Abstract

The development of environmentally friendly materials is crucial to mitigate the environmental impact of conventional plastics. This study focuses on developing bioplastics using rice straw and rice husks, combined with glycerine, carboxymethyl cellulose (CMC), and titanium dioxide (TiO₂). Glycerine acts as a plasticizer to enhance flexibility, CMC functions as a matrix binder, and TiO₂ serves as a reinforcing agent to improve mechanical strength. Bioplastics were produced using the casting method with specific proportions of these materials. Characterization tests included scanning electron microscopy (SEM) for morphology, biodegradability tests, water absorption analysis, and tensile strength measurements. Results revealed that the combination of rice straw and rice husks produced bioplastics with varied morphologies. TiO₂ enhanced mechanical strength and material homogeneity, though its distribution requires further optimization. Glycerine significantly increased flexibility, while CMC improved matrix cohesion. The novelty of this research lies in the integration of agro-industrial waste—rice straw and rice husks—with TiO₂, glycerine, and CMC, creating bioplastics that balance biodegradability, mechanical properties, and flexibility. This innovative approach demonstrates the potential of utilizing agricultural byproducts to produce sustainable alternatives to conventional plastics, offering customizable properties for diverse applications.
Implementation of Nggahi Rawi Pahu Philosophy Through in Chemistry Learning Based on Social Cognitive Theory for Student Character Strengthening Annafi, Nurfidianty; Admyana, Putu Budi; Suastra, I Wayan; Sutajaya, I Made; Tika, I Nyoman; Wesnawa, I Gede Astra
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13492

Abstract

Social cognitive theory developed by Albert Bandura is the most influential approach to learning. This theory emphasizes that a person's behavior can be learned through observation of social models in the surrounding environment, be it teachers, parents, or peers. This theory is known as observational learning or modeling. This research aims to explore the process of observational learning in an effort to strengthen the value of the Nggahi Rawi Pahu philosophy. The research method used is descriptive qualitative.  The sample in this study were fourth semester students of the Chemistry Education Study Program. Data collection techniques were carried out by means of observation, administration of questionnaires and documentation. In this study, observational learning was carried out through 4 stages of cognition in the learning process, namely attention, retention, motor reproduction and motivation. 7 out of 10 students showed a positive response to the relevance, involvement and benefits of observational learning in an effort to strengthen the philosophy of Nggahi Rawi Pahu. This shows that through observational learning the value of the Nggahi Rawi Pahu philosophy can be improved.
Optimization of Distillation Process for Scale-up Production of Lavender Essential Oil: A Literature Review Dwipa, Yusri Hajjo; Salsabila, Cheryl; ‘Azmi, Madah Ikrimatul; Sukmawati, Nani; Assyifa, Muhammad Zaky; Syauqillah, Ahmad; Fikroh, Retno Aliyatul
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 5 (2024): October 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i5.12920

Abstract

Lavender essential oil being one of the most used essential oils. Oxygenated monoterpenes are the largest constituent of lavender essential oil and the determinant of the characteristic aroma produced. Lavender flowers are composed of several ingredients, such as essential oils, alpha-pinene, beta-myrcene, limonene, cineol, linalool, terpinine-4-ol, and linalyl acetate. The aim of this study is to develop an efficient, effective, and profitable method of lavender oil extraction that can be used for commercial scale production, in order to determine which method is most suitable for scale-up production. The method used in this study is literature review with the results of literature reviews conducted, the method with the highest percentage of essential oil components is the use of innovative methods such as extraction with the help of microwaves (MW) with the percentage of linalool (32.90%) linaly acetate (27%), extraction with the help of ultrasonic (AS) with the percentage of linalool (37.6% ), linalyl acetate (18.4%)., supercritical fluid extraction (SF) with linalool (24%), extraction, and negative pressure extraction (NPCE) with linalool percentage (27.18%) linaly acetate (25.23%). While the smallest percentage of essential oil components in the use of molecular distillation is the percentage of Linalool (4.56%), linaly acetate (12.78%). The originality of this research contribution can open the door for further research and wider practical applications.

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