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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 21 Documents
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Search results for , issue "Vol 12, No 5 (2024): October 2024" : 21 Documents clear
Phytochemical Screening and In Vitro Antidiabetic Test of Ethyl Acetate Fraction of Tiger’s Betel (Piper porphyrophyllum) Hanifah, Nurul; Santoni, Adlis; Efdi, Mai
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.v12i5.13118

Abstract

Piper porphyrophyllum or known as tiger’s betel, is a medicinal plant of the Piper genus that is quite widespread in Indonesia, especially on Java, Sumatra, and Kalimantan island. Tiger’s betel is widely used traditionally to treat headaches, bone pain, chest tightness, skin diseases, relieve inflammation, and diabetes mellitus. This study aims to determine the type of secondary metabolite compounds contained in the ethyl acetate fraction of tiger’s betel and determine its antidiabetic activity. Determination of the type of compound is conducted by phytochemical screening by a qualitative test using various reagents to identify flavonoids, phenolics, saponins, triterpenoids, steroids, alkaloids, and coumarins. The antidiabetic assay was carried out by inhibiting α-glucosidase activity and the results were reported as IC50 values. The ethyl acetate fraction of tiger’s betel positively contains alkaloids, flavonoids, and phenolics. The antidiabetic activity is classified as very strong, with an IC50 value of 14.06 µg/mL.
Implementation of Sekolah Penggerak Programme to Address Chemistry Teachers Competency on Design PjBL-based Digital Teaching Materials in Padang Suryani, Okta; Sari, Trisna Kumala; Riga, Riga; Mawardi, Mawardi; Putra, Ahadul
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.v12i5.12952

Abstract

Teaching materials for Sekolah Penggerak should be prepared based on a creative thinking learning model such as project-based learning (PjBL). However, based on the needs and situation of teachers towards the implementation of PjBL-based learning, implementation of PjBL in learning is still low, since the teachers in Padang need the advance training of preparation in PjBL learning material. The Community service activities have been carried out to provide experienced chemistry teachers in developing teaching materials based on Project-Based Learning. The implementation methods carried out in this activity are: (1) Analyzing the needs and situation of teachers towards the implementation of PjBL-based learning through questionnaires distributed, (2) Submission of material to service participants related to the PjBL learning model and syntax in this learning model explained by the speaker, then (3) Teachers are given the task of compiling and designing chemistry LKPDs using the PjBL model, (4) Teachers will present the results of the LKPD design compiled, and (5) evaluation of activities. The results of the service activities carried out can provide experience and understanding for chemistry teachers in Padang city regarding the PjBL learning model. Participants who attended this service activity could prepare chemistry teaching materials using the PjBL model so that teachers could be more innovative and creative. This activity service can provide motivation for teachers to prepare teaching materials in accordance with the demands of the Kurikulum Merdeka, especially in the implementation of project-based learning.
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.
Description of Science Teacher Readiness in Implementing Independent Curriculum at SMAN 1 Pulau Maya Agustina, Bella; Enawaty, Eny; Ifriany, Andi; Hairida, Hairida; 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.v12i5.13120

Abstract

This study aims to evaluate the readiness of science teachers at State Senior High School (SMAN) 1 Pulau Maya in implementing the Merdeka Curriculum, with a focus on understanding the curriculum and readiness in developing teaching modules. The method used is descriptive qualitative, with data collection through observation, interviews, and documentation of three science teachers (Chemistry, Biology, and Physics). The results showed that the teachers' understanding of the curriculum reached excellent scores, namely 100 for Chemistry, 100 for Biology, and 93.8 for Physics, with an average of 98. However, their readiness in preparing teaching modules was at a sufficient level, with a percentage of 55% for Chemistry, 67% for Biology, and 72% for Physics, an average of 65% thus classified as ready. In conclusion, although science teachers have understood the curriculum well, there is still a need to improve their readiness in preparing teaching modules in order to carry out the learning process optimally.
Designing POGIL Based Student Worksheets for Buffer Solution Learning at SMAN 2 Sawahlunto Wanti, Sri; Mawarnis, Elvy Rahmi; Herman, Mimi
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.v12i5.12696

Abstract

The purpose of this study was to produce a valid and practical Process Oriented Guided Inquiry Learning (POGIL)-based Student Worksheet (LKPD) on 11th Grade Class Buffer Solution Material at State Senior High School (SMAN) 2 Sawahlunto. This research uses the Research and Development research method with the 4-D development model (define, design, develop, and disseminate). However, the stages in research with this 4-D model are only carried out from the first to the third stage, namely the define stage aims to get an overview of field conditions, the design stage aims to compile and design POGIL-based Student Worksheets (LKPD) on buffer solution material, and the develop stage aims to continue the POGIL-based LKPD on buffer solution material that has been designed with validity and practicality tests. The research instruments used were validation sheets and response questionnaire sheets. The validation sheet was filled by 2 lecturers and 1 chemistry educator. The response questionnaire sheet was filled by 25 of 11th grade students and 2 chemistry educators of SMAN 2 Sawahlunto. The results showed that 1) POGIL-based LKPD on buffer solution material meets the valid criteria with 85.42% validation results. 2) POGIL-based LKPD on buffer solution material has met the practical criteria with educator practicality response questionnaire results of 92.31% and student response questionnaire results of 82.15%.
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.
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.
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 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.

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