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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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Validity of Salt Hydrolysis E-Module Based on PBL with Teaching at the Right Level Approach Parhusip, Efriani Br; Iryani, Iryani
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.v12i5.13147

Abstract

The Independent Curriculum is an innovation introduced by the Ministry of Education, Indonesia, under regulation No. 56/M/2022. This curriculum concentrates on the core subjects while giving special attention to character development and flexible learning that is adjusted to meet the requirements of individual pupils. One of the chemistry topics in the Independent Phase F Curriculum is salt hydrolysis. The purpose was to determine the level of validation of the PBL-based salt hydrolysis e-module using the TaRL approach. This research employs the Plomp model as part of the educational design research (EDR) framework, encompassing the stages of preliminary research, prototyping, and evaluation, but is limited to Prototype III. This study used five validators to evaluate the module based on language, presentation, content, graphics, and media components using a validation questionnaire.  The results obtained from this study are PBL-based salt hydrolysis e-modules with a valid TaRL approach, with a validation value of the content component of 0.92, presentation of 0.91, language of 0.97, graphics of 0.95, and media average of 0.90.
Effectiveness of Antioxidant Compounds in Swallow's Nest from Lombok Juniawan, Alvin; Andini, Arista Suci; Wanadiatri, Halia
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.v12i5.13169

Abstract

This study investigated the antioxidant activity of swallow nests known as Edible Bird Nests (EBNs) derived from the swallow species Collocalia linchi, especially those sourced from Lombok, Indonesia with various health benefits, including their potential as antioxidants. This study used swallow nest samples taken from 3 different locations, namely: East Lombok, Central Lombok and West Lombok. The extraction method used is heating and sonication. Antioxidant activity was assessed quantitatively using the DPPH method and measured by UV-Vis spectrophotometry. Results showed varying IC50 values across different extraction times, with the highest values recorded at 3818.47 mg/mL and the lowest at 2331.47 mg/mL, compared to the control (ascorbic acid) at 35.22 mg/mL. The higher the IC50 value, the lower the effectiveness of antioxidants and vice versa. These findings suggest that the antioxidant activity of EBNs extracts is relatively weak when compared to ascorbic acid. This study contributes to the understanding of optimized extraction techniques by heating and sonication to unlock the full potential of the extraction results of bioactive compounds.
Development of Student Activity Sheets (LAPD) Oriented to Project Based Learning (PjBL) to Improve Chemical Literacy Skills on Redox Material Suryawan, Karina Ristya; Mitarlis, Mitarlis
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.v12i6.13183

Abstract

In the era of 21st century skills, the literacy scores of Indonesian students according to the results of the PISA study (2022) are still relatively low. The existence of learning loss after the covid-19 pandemic has had an impact on reducing learning outcomes and students' chemical literacy skills on redox material. This research aims to produce LAPD oriented to project based learning to improve chemical literacy skills on redox material. The method used is Research and Development (R&D) with a 4D model (define, design, develop, disseminate), but is limited to the develop stage. In this research, a limited trial was conducted on 29 students in 11th Grde Science 2 class, at a private school in Mojokerto, who had received redox material. Data analysis was carried out descriptively quantitatively. The validity (content and construct) of LAPD is valid, obtaining a mode of 4 with a good category. The practicality of LAPD is practical, the results of the student response questionnaire obtained a percentage of 96.78% with a very good category. The effectiveness of LAPD iseffective, the n-gain of the chemical literacy test with a high category of 93.10% and a medium category of 6.90%; and the results of the paired sample t-test obtained a Sig.2-tailed value of 0.000 < 0.05 so that H0 is rejected and H1 is accepted. Thus, it can be concluded that LAPD oriented to project based learning to improve chemical literacy skills on redox material, worthy of use
Antidiabetic Effect of Ethanol Extract of Keji beling Leaves (Strobhilantes crispa) in Rats Induced by Streptozotocin Nuraqidah, Nuraqidah; Hasnaeni, Hasnaeni; Mirawati, Mirawati
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.v12i5.13256

Abstract

Diabetes Mellitus (DM) type 2 is a chronic disease characterized by increased glucose levels in the body due to insulin resistance or inadequate insulin production. This study aims to determine the antidiabetic potential of keji beling ( Strobhilantes crispa) leaf extract. This research is different from other studies which used Alloxan as a diabetes inducer. In this study, Streptozotocin was used as a DM inducer. After treatment, information was obtained that keji beling (S. crispa) extract could reduce blood glucose levels in type 2 DM rats. Experimental research used 30 male Wistar rats divided into six groups consisting of normal group, negative control (HFD and Streptozotocin), positive control (Glibenclamide), dose group I (150 mg/kg BW), dose II (300 mg/ kg BW), and dose III (450 mg/kg BW). Based on the research results, it is known that S.crispa leaf extract can reduce blood glucose levels in mice induced by Streptozotocin and has the potential to act as an antihyperglycemic in type 2 DM.
Ethnochemistry: Studying The Food Chemistry In The Making of Kapurung Imranah, Imranah; Yusaerah, Nur; Wana, Nur; Faradita, Udita
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.v12i5.13325

Abstract

Kapurung is a traditional food from South Sulawesi, especially from Tanah Luwu/Luwu Raya. This food is made from sago (Metroxylon sago) as the basic ingredient which is processed together with various vegetables and meat or fish. The concept of ethnochemistry is used to examine the process of making kapurung through analyzing the natural ingredients used and the chemical changes that occur during processing. The way kapurung is made reflects the local knowledge of the community in managing existing natural resources. The research was conducted to reveal the chemical aspects and fundamental chemical activities contained in the process of making kapurung.This research uses descriptive qualitative research with ethnographic methods, namely observation, interviews, and documentation. Data analysis in this study used source triangulation which was carried out inductively, so that in this study key informants, main informants and supporting informants were determined on each aspect that became the object of research.The results showed that the fundamental chemical activities contained in the kapurung making process are the gelatinization of starch in sago, protein denaturation, fiber degradation and the dissolution of nutrients in vegetables, the Maillard reaction in fried/roasted fish/chicken, and the use of food additives in the kapurung making process.
Effectiveness of the Constructivist Approach (Guided Inquiry) in Chemistry Learning: A Systematic Review Pahriah, Pahriah; Adnyana, Putu Budi; Ariawan, I Putu Wisna; 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.v12i5.13353

Abstract

This study aims to identify the effectiveness of the Guided Inquiry approach in enhancing critical thinking skills, learning motivation, conceptual understanding, and student learning outcomes in chemistry education. Utilizing the Systematic Literature Review (SLR) method, this research reviews various relevant studies from international and national databases such as Scopus, ERIC, and SINTA, employing focused keywords. The analyzed articles were selected based on inclusion criteria that encompassed topic relevance and the availability of empirical data, resulting in 27 final articles for further analysis. The qualitative analysis results indicate that Guided Inquiry not only improves students' conceptual understanding of chemistry concepts but also strengthens critical thinking skills and learning motivation. Quantitative findings demonstrate a pattern of increased effectiveness across various educational levels, with more significant results observed at the secondary education level compared to higher education. Several factors, such as the role of teacher facilitation and student readiness, were also identified as important influences on the success of this approach. This study recommends the integration of the Guided Inquiry approach into the chemistry education curriculum, accompanied by the development of technology-based modules and continuous training for educators, to maximize the potential for constructive learning.
Analysis The Implementation of Science Process Skills (SPS) Assessment in Chemistry Learning in Indonesia: A Systematic Literature Review Ovilia, Ghea; Sakina, Nifela; Nurlatifah, Nurlatifah; Nahadi, Nahadi
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.v12i6.13366

Abstract

The assessment of science process skills (SPS) in chemistry learning is important because it allows teachers to evaluate how far students are able to apply science process skills in chemistry. This research is a Systematic Literature Review using PRISMA (The Preferred Reporting Items for Systematic Reviews and Meta-Analysis). The aims of this research is to understand the implementation of science process skills assessment in chemistry learning in Indonesia. The result shows that the implementation of SPS assessment in chemistry learning in Indonesia has been suitable with the purposes and principles of SPS assessment, however some indicators of SPS need improvement. The implementation of SPS assessment in chemistry learning should be integrated through contextual learning that involves students actively.
Preliminary Study on the Potential of Red Fruit Pigment (Pandanus conoideus) from West Papua as Dye-Sensitized Solar Cell (DSSC) Stepanus, Jamius Bin; Patiran, Abdul Zaid; Sumarna, Sabir; Islam, Muh. Fajar
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.v12i6.13441

Abstract

The red fruit (Pandanus conoideus) is an endemic plant from Papua, known for its distinctive color and shape. This fruit is recognized for its bioactive properties, such as antioxidant, anti-inflammatory, and antihyperglycemic effects. Its high pigment content is believed to have potential as a sensitizer in DSSC applications. However, research on this topic remains underexplored. Therefore, the aim of this preliminary study is to investigate the potential of red fruit pigments for DSSC. The characterization of red fruit pigments was conducted through phytochemical screening, FTIR and UV-Vis spectral analysis, as well as literature reviews. Pigment extraction was carried out using maceration without involving drying or grinding processes. Phytochemical screening results revealed that the macerate contains flavonoids, alkaloids, phenolics and terpenoids, compounds commonly used as natural pigments in DSSCs. FTIR analysis showed the presence of functional groups such as carboxyl (-COOH), carbonyl (C=O), and hydroxyl (-OH), which can act as effective anchoring groups when interacting with nanosemiconductor surfaces. Meanwhile, UV-Vis analysis showed absorption peaks in the UV region (wavelength 204–399 nm) and the visible region (wavelength 400–550 nm). Based on literature studies and research findings, it can be concluded that the pigments in red fruit have potential applications as DSSC sensitizers.
Development of Animated Video Learning Media Integrated with Quranic Verses on Molecular Shape Material for 11th Grade Student Udzri, Muhammad Taufiq; Mawarnis, Elvy Rahmi; Sari, Dwivelia Aftika
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.v12i6.13455

Abstract

This research was motivated by the limited availability of learning media used as a source of student learning which has an impact on the quality and learning process. Learning media used by educators are still simple and non-technological. Therefore, it is necessary to develop a learning media to be used as an additional learning resource for students The learning media developed consists of animated videos integrated with verses from the Quran. The purpose of this research is to produce animated videos integrated with Quranic verses on molecular form material that are valid and practical. This research uses the Research and Development research method with the 4-D model (define, design, develop, and disseminate). Based on the results of the research conducted, it was found that 1) the animated video integrated with Quranic verses met the criteria of being very valid with a percentage of content feasibility on the material of 90.17%, content feasibility on the interpretation expert obtained a percentage of 95%, presentation feasibility obtained a percentage of 93.75%, presentation feasibility on the interpretation expert obtained a percentage of 100%, linguistic feasibility obtained a percentage of 92.41%, linguistic feasibility on the interpretation expert obtained a percentage of 96.87% and feasibility of grammatical obtained a percentage of 92.50%, 2) the animated video integrated with Quranic verses on molecular shape material has met the criteria of very practical with the results of student response questionnaires on the ease of use indicator obtained a percentage of 87.10%, the interest indicator obtained a percentage of 90.17%, the usefulness indicator obtained a percentage of 89.28 and time efficiency obtained a percentage of 90.62%. The results of this study indicate that the animated video developed can be used as a learning resource for students.
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.

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