Hydrogen: Jurnal Kependidikan Kimia
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.
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<![CDATA[Colorimetric Sensor of Hg(II) Ion from AgNPs-MO Quantified Using DIC with ED Equation Approach ]]>
<![CDATA[Thohir, Muhammad Bakhru]]>;
<![CDATA[Tiyas, Windi Pangesti Kusumaning]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13772
<![CDATA[Mercury is one of the heavy metals that has high toxicity, not only for the environment but also for human health. Mercury is found in many cosmetic products; unfortunately, for people who do not understand the dangers of mercury cosmetic ingredients, their skin will become red rashes. The novelty of this article is to use colorimetric sensor for mercury combined with Digital Image Colorimetry (DIC). The image is captured with the the smartphone camera and quantified using the Euclidean Distance (ED) Equation approach. In addition, the synthesized AgNPs also use the green synthesis method with natural materials as reducing agents and stabilizers. Therefore, the purpose of this study is to determine the best synthesis conditions and determine the detection performance of mercury (II) ions. The research began with the synthesis of mercury detection substances, namely silver nanoparticles reduced and stabilized by Moringa oleifera leaf extract (AgNPs-MO). In this study, it was found that silver nanoparticles began to form at 1 hour accompanied by heating at 120°C using a hotplate, while 6 hours when without heating. The optimum pH condition is 10. This mercury detection method has good sensitivity and accuracy values, with RSD values of less than 1% for each analyte in 5 repetitions.]]>
<![CDATA[Absorption of Metal Ions and Dyes in Liquid Waste : A Literature Review ]]>
<![CDATA[Indah, Dahlia Rosma]]>;
<![CDATA[Afriani, Aulia]]>;
<![CDATA[Nurwahidah, Nurwahidah]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13823
<![CDATA[Industrial development and population growth cause a lot of waste to enter water bodies, causing pollution. A number of studies have been carried out to remove metal ions and dyes in waters. Adsorption is the most widely used method to absorb heavy metal ions and harmful dyes by utilizing natural resources that are still abundant, for example, agricultural, livestock, and fishery waste. Adsorption can also use activated or modified absorbent materials to increase porosity and expand the surface plane. In this review, the adsorption method and results obtained by the researcher with various absorbent materials are summarized which are mostly carried out in the last ten years. The purpose of this review is to provide input in finding alternatives to other absorbent materials or eliminating pollutants harmful to human health and the environment.]]>
<![CDATA[Development of Student Activity Sheets (LAPD) Oriented to Project Based Learning (PjBL) to Improve Chemical Literacy Skills on Redox Material ]]>
<![CDATA[Suryawan, Karina Ristya]]>;
<![CDATA[Mitarlis, Mitarlis]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13183
<![CDATA[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]]>
<![CDATA[Application of Jigsaw Type Cooperative Learning Model to Improve Conceptual Knowledge and Problem Solving Ability of Senior High School Students ]]>
<![CDATA[Shofa, Nada]]>;
<![CDATA[Supriadi, Supriadi]]>;
<![CDATA[Aldoko, Wisnu]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13930
<![CDATA[This study proves that the Jigsaw type cooperative learning model can improve the conceptual knowledge of students on thermochemistry material, which is a learning model that has an influence on improving students' conceptual knowledge of thermochemistry. It aims to improve students' conceptual knowledge and problem solving ability through the application of the Jigsaw type cooperative learning model, taking into account the students' basic mathematics ability level which is classified into three categories: low, medium, and high. This research used quasi-experiment method with pretest-posttest control group factorial design. The subjects of the study were students of class XI IPA at SMA Negeri 06 Bombana, Bombana Region. Data were obtained through conceptual knowledge test, problem solving ability test, and student response questionnaire. The results showed that the conceptual knowledge of students who followed the Jigsaw type cooperative learning model was quantitatively higher than that of students who followed the conventional learning model. The results showed that the conceptual knowledge of students who followed Jigsaw cooperative learning was quantitatively higher than that of students who followed conventional learning. The same applies to problem solving ability, where students with the Jigsaw model showed quantitatively higher results compared to conventional learning students. the increase in conceptual knowledge was greater in the Jigsaw group compared to conventional learning. The level of students' basic mathematics ability did not affect the increase in conceptual knowledge, but did affect the increase in problem solving ability. Students gave positive responses to the Jigsaw type cooperative learning model, stating that this model was fun, easy to follow, and increased learning motivation.]]>
<![CDATA[Developing Quran-Integrated E-Modules on Salt Hydrolysis: A Learning Cycle 8E Approach for 11th Grade of Senior High School Students ]]>
<![CDATA[Rizki, Gibrina]]>;
<![CDATA[Mawarnis, Elvy Rahmi]]>;
<![CDATA[Herman, Mimi]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.12697
<![CDATA[The low learning outcomes of students are caused by limited teaching materials and educators who tend to use the lecture method during learning. This research aims to develop an E-Modules Based on Learning Cycle 8E Integrated with Al-Quran verses on Salt Hydrolysis Material for 11th Grade of Senior High School (SMA/MA) that are valid and practical. This research uses the Research and Development research type with the 4-D development model (define, design, develop, and disseminate). lkpHowever, only the first three stages of the model were implemented in this research. The results showed that 1) e-modules based on Learning Cycle 8E integrated with Al-Quran verses on salt hydrolysis material 11th Grade SMA / MA met the criteria very valid with a percentage of the validity of e-modules based on Learning Cycle 8E is 89%, the validity of content feasibility on integration with Al-Qur'an verses obtained a percentage of 90.6%. 2) e-modules based on Learning Cycle 8E integrated with Al- Quran verses on salt hydrolysis material for 11th Grade SMA/MA have met the criteria of being very practical with the results of the student response questionnaire obtaining a percentage of 84% and educators obtaining a percentage of 93%.]]>
<![CDATA[Rasch Model Analysis to Develop Assessment Instruments for Student's Science Process Skills on Chemical Bonding Material ]]>
<![CDATA[Oktavianti, Femi]]>;
<![CDATA[Aini, Faizah Qurrata]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13941
<![CDATA[The assessment of student's science process skills (SPS) on chemical bonding material in schools does not yet meet the learning outcomes of the Merdeka curriculum, because the instruments used by teachers are more focused on knowledge aspects. The purpose of this research is to develop an assessment instrument for science process skills in the topic of chemical bonding. The type of this research is Research and Development (R&D) using the Rasch model modified by Liu. This research produced 18 questions tailored to the number of learning objectives in the chemical bonding material and the indicators of scientific process skills in the Merdeka curriculum, which consist of 1) observing, 2) questioning and predicting, 3) planning and conducting investigations. 4) processing, analyzing data and information, 5) evaluating and reflecting, and 6) communicating results. The logical validity test was conducted by 5 validators consisting of 3 chemistry lecturers from FMIPA UNP and 2 chemistry teachers from State Senior High School (SMAN) 1 Banuhampu. The raw validation data were analyzed using Minifaced software, which showed that the data were valid according to the model. The raw trial data on 60 students from SMAN 1 Banuhampu were analyzed using Ministep, showing that all questions met the criteria of being valid, reliable, and having good difficulty and discrimination indices according to Rasch. These results indicate that the developed instrument is effective in measuring students' SPS on chemical bonding material and can be used to support learning based on a scientific approach.]]>
<![CDATA[The Chemistry Teacher Activities on The Training of Project Based Learning Teaching Materials Digitalisation ]]>
<![CDATA[Suryani, Okta]]>;
<![CDATA[Sari, Trisna Kumala]]>;
<![CDATA[Riga, Riga]]>;
<![CDATA[Mawardi, Mawardi]]>;
<![CDATA[Yuhelman, Nofri]]>;
<![CDATA[Nasra, Edi]]>;
<![CDATA[Velly, Aglin]]>;
<![CDATA[Rahmad, Nafisah Yulia]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13495
<![CDATA[This activity is the second year of community service which is a continuation of training activities and making digital teaching materials to support project-based learning (PjBL) in sekolah penggerak for chemistry teachers in Padang city. This second year of community service activities has the theme of training to digitise project-based learning teaching materials developed at the Chemistry Musyawarah Guru Mata Pelajaran (MGMP) in Padang city. This activity aims to provide direction to Padang city chemistry teachers in implementing digital teaching materials. This community service was carried out in the lecture building of FMIPA Universitas Negeri Padang on 9 August, 16 August, and 23 August 2024. The implementation methods carried out in this community service activity are: (1) conducting a needs analysis, knowing the situation of teachers towards the implementation of PjBL-based learning through questionnaires distributed, (2) delivering material to community service participants related to PjBL and an overview of teaching materials that have been designed using the PjBL learning model explained by the speaker, then (3) delivery of materials and discussions related to differentiated learning with the PJBl learning model, and (4) delivering material related to the digitalisation of project-based teaching materials or PjBL using liveworksheet. The results of the service activities carried out can provide motivation, provide experience, and understanding for Padang city chemistry teachers regarding the digitalisation of project-based learning teaching materials so that chemistry teachers in Padang city can prepare digital chemistry teaching materials, especially with liveworksheets using the PjBL model that can assist learning activities so that learning can run effectively and efficiently in accordance with the demands of the curriculum and the times.]]>
<![CDATA[Synthesis of Cellulose Straw and Rice Husk as Raw Materials for Bioplastic Production ]]>
<![CDATA[Hardi, Gilar Wisnu]]>;
<![CDATA[Dewi, Berlian Kusuma]]>;
<![CDATA[Toruan, Sari Artauli Lumban]]>;
<![CDATA[Nurjanah, Suci]]>;
<![CDATA[Fitriana, Syifa Ayu]]>;
<![CDATA[Yunita, Lia]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13795
<![CDATA[The development of environmentally friendly materials such as bioplastics is a solution to reduce the negative impact of conventional plastics on the environment. This study presents a novel approach by utilizing hemicellulose extracted from rice straw and husks—abundant agricultural waste materials—as the main raw materials for bioplastic production. Hemicellulose was extracted using the alkalization method, and its characterization was carried out through FTIR analysis to identify typical polysaccharide functional groups. The results of the analysis showed the presence of O-H, C-H, and C-O-C groups, which indicate the glycosidic structure of hemicellulose, as well as indications of residual lignin with C=C groups. The resulting hemicellulose was then processed into bioplastics with the addition of plasticizers and reinforcing materials, incorporating glycerin, CMC, and TiO₂ to enhance mechanical properties and biodegradability. Mechanical and degradation tests demonstrated superior performance, highlighting the synergy between these additives. This study provides an innovative strategy for transforming agricultural waste into high-value bioplastics, contributing to sustainability and advancing green material technology.]]>
<![CDATA[Literature Review: Universal Design for Learning (UDL) Approach of Chemistry Learning in Inclusion Schools ]]>
<![CDATA[Nurramadhani, Aisyah Zahra]]>;
<![CDATA[Pratama, Kiki Putri Septya]]>;
<![CDATA[Amelia, Lisa]]>;
<![CDATA[Kusuma, Aldi]]>;
<![CDATA[Erika, Farah]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13636
<![CDATA[Inclusive education is a promising way to create an equitable and high-quality education system that accepts all learners, including those with special needs. Universal Design for Learning (UDL) offers a flexible and dynamic approach to meet the various needs of learners, helping them to reach their full potential in education. This literature study aims to discover the application of the universal design for learning approach in chemistry learning. The research method used Narrative Literature Review (NLR), which uses the Google Scholar database to search for journal articles from the last ten years. The results of the literature show that applying the Universal Design for Learning approach in chemistry learning has a major influence in improving the learning experience and learning outcomes of students with special needs. Various interesting teaching materials such as learning videos, interactive games, and the application of E-modules are also used to support the learning process.]]>
<![CDATA[Analysis The Implementation of Science Process Skills (SPS) Assessment in Chemistry Learning in Indonesia: A Systematic Literature Review ]]>
<![CDATA[Ovilia, Ghea]]>;
<![CDATA[Sakina, Nifela]]>;
<![CDATA[Nurlatifah, Nurlatifah]]>;
<![CDATA[Nahadi, Nahadi]]>
<![CDATA[ Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/hjkk.v12i6.13366
<![CDATA[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.]]>
