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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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Student Worksheet (LKPD) Development Based on Local Wisdom in the Making of Teak Leaf Extract as a Natural Indicator of Acid-Base Mukhtar, Raine Ramdhanya; Hairida, Hairida; Enawati, Eny; Masriani, Masriani; Erlina, Erlina
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.12131

Abstract

This study aims to determine the level of feasibility and response of teachers to the development of student worksheets (LKPD) based on local wisdom on the use of teak leaves as a natural indicator of acid-base acid. This research method is Research and development (R&D) or a development method with the ADDIE research model which consists of analysis, design, development and evaluation. The subject of this research is LKPD which is validated by 2 experts in the fields of materials and graphics and linguistics. This study was also to determine the responses of 5 chemistry teachers from Alor district, East Nusa Tengggara and Singkawang city, West Kalimantan by using data collection instruments in the form of validation sheets and teacher response questionnaires with indirect communication data collection techniques. The results of data processing showed that LKPD products based on local wisdom had a validity level of 83.12% and the results of the educator response test of 97.5% with each category very feasible.
Analysis of Students' Ability to Solve Higher Order Thinking Skill Questions on Reaction Rate Materials in 11th Grade of MAN 1 Pontianak Lestari, Indah; Enawati, Eny; Ulfah, Maria; Hairida, Hairida; Erlina, Erlina
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.12139

Abstract

High Order Thinking Skill is one of the most important skills in the 21st century. This study aims to describe the ability of students to solve Highter Order Thinking Skill (HOTS) questions in the reaction rate material in class XII MAN 1 Pontianak. The HOTS indicator in this study is the ability to analyze (C4). The method used in this study is descriptive. The subject of the study is 11th Grade students of MAN 1 Pontianak for the 2023/2024 school year consisting of 37 students. The instruments used are HOTS question sheets on validated reaction rate materials and interview guidelines. The results of this study show that there are 2.7% of students with high ability and meet the criteria for analysis, 13.5% of students with medium ability and are able to analyze problems but there are still mistakes, and 83.7% of students with low ability are 83.7%.
Reducing Coffee Acidity and Caffeine through the Roasting Method using Azadirachtaindica Firewood Putera, Dwi; Yamin, Yamin; Firdaus, Thoriqi
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12140

Abstract

Coffee is known as an acidic drink, so it will make the stomach feel unpleasant. This research compares the roasting method with Azadirachta Indica firewood with machine and manual roasting processes. Each roasting method uses four maturity levels: light roast, medium roast, dark roast, and extra dark roast. The acidity test used a pH meter instrument, and the caffeine test used the spectrophotometric method, which was carried out at the Sucofindo Indonesia laboratory. The one-way ANOVA test analyzed each method's acidity and caffeine results statistically. It can be seen that the sig < 0.05 in one-way ANOVA results for pH (0.006) and caffeine (0.013) coffee tests. So, there are significant differences in the three coffee roasting methods in reducing acidity and caffeine levels at each coffee roasting level. The average results of coffee acidity using the Azadirachta Indica wood roasting method (5.6), machine roasting (5.1), and manual roasting (4.8). The average yield of coffee caffeine with the Azadirachta Indica wood roasting method (2.13), machine roasting (2.55), and manual roasting (2.90). The roasting way using Azadirachta Indica firewood is the most effective, and there is a significant difference in reducing the acidity and caffeine of coffee at each level of coffee roasting. 55), and manual roasting (2.90). The most effective method of roasting is with Azadirachta Indica firewood, and there are significant differences in reducing the acidity and caffeine of coffee at each coffee roasting level. 55), and manual roasting (2.90). The most effective method of roasting is with Azadirachta Indica firewood, and there are significant differences in reducing the acidity and caffeine of coffee at each coffee roasting level.
The Influence of the Anchored Instruction Model assisted by PHET on Students' Problem Solving Abilities Dewi, Bq Intan Patmala; Verawati, Ni Nyoman Sri Putu; Hikmawati, Hikmawati; Rahayu, Satutik
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12179

Abstract

Abstract This research aims to test the effect of the anchored instruction model assisted by PhET on students' physics problem solving abilities in optical instruments at SMAN 1 Sukamulia. The type of research used is quasi experimental with a pretest-posttest control group design. The population is all students in class XI MIPA SMAN 1 Sukamulia, totaling 52 people. The research sample was taken using a saturated sampling technique and class XI MIPA 1 was selected as the experimental class and class XI MIPA 2 was selected as the control class. The experimental class was treated with an anchored instruction model assisted by PhET and the control class was treated with a direct learning model. The research instrument consists of a problem solving ability test (KPM) in the form of a description test of 10 questions taking into account validity, reliability, level of difficulty and differentiability of questions. The KPM pre-test and post-test data were tested for normality and homogeneity, then continued with hypothesis testing using the twin sample t-test. Hypothesis test results obtained that the calculated t value was greater than the t table, so Ha was accepted, so that the PhET-assisted anchored instruction learning model had an effect on ability. Physics problem solving for students at SMAN 1 Sukamulia.
Development Problem-BasedLearning Oriented E-worksheet To Train Analytical Skills On Chemical Equilibrium Material Damayanti, Vivi; Novita, Dian
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12189

Abstract

The purpose of this study is to discuss the possibility of using a problem-based learning-oriented e-worksheet to teach students analytical skills on chemical equilibrium material. The feasibility of E-LKPD may be assessed in terms of validity, practicality, and efficacy. The approach employed in this study is Research and Development (R&D), utilizing the 4D development process derived by Tiagharajan, which covers Define, Design, Develop, and Disseminate. Based on the findings of the research, the e-worksheet earned mode 3 on the validation sheet, indicating that it is legitimate. The e-worksheet was deemed extremely practical based on the findings of the student response questionnaire, with a percentage of 86.44%. The e-worksheet is certified effective in terms of analyzing t test findings with a significance value of 0.00, implying that Ho is rejected and Ha is accepted. The n-gain score for analytical skills was 0.55 on element analysis, 0.59 on relationship analysis, and 0.59 on organizing analysis. Based on these findings, it is possible to infer that the problem-based learning-oriented e-worksheet produced to educate students' analytical abilities on chemical equilibrium content is suitable for usage. 
Application of Problem-Based Worksheets to Develop Higher Order Thinking Skills In The Utilization of Coconut Shells As Zn Metal Adsorbent In Laboratory Waste Lestari, Risma; Sukmawardani, Yulia; Subarkah, Cucu Zaenab; Farida, Ida
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.12191

Abstract

This study aims to analyze scientific performance and analyze students' higher-order thinking skills after the application of problem-based LK to develop higher-order thinking skills in the use of coconut shell as an adsorbent for Zn metal in laboratory wastewater. The research method used is pre-experiment with one shot case study design. The subjects in this study were chemistry education students of UIN Sunan Gunung Djati Bandung who took separation chemistry courses. The instruments used are learning descriptions, LK, and higher order thinking skills questions. Students' higher-order thinking skills are measured through working on six HOTS questions based on the concept of Bloom's taxonomy level of thinking at cognitive levels C4 (analyze), C5 (Evaluate) and C6 (Create). The results showed that the average value of student performance in solving problem-based LK was 88.35 with a very good category. The highest average score achieved was at stage 2 organizing students with a score of 91.5 and a very good category. The lowest average value at stage 4 develops and presents results with a value of 86.25 and a very good category. The results of students' higher order thinking skills obtained an average score of 78 in the good category. Thus the application of problem-based LK on the utilization of coconut shell as a heavy metal adsorbent in laboratory wastewater can develop higher order thinking skills in students.
Development of Augmented Reality Technology Integrated Learning Media on the Topic of Chemistry and Matter Liza, Wira Rahma; Guspatni, Guspatni
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.12230

Abstract

Augmented Reality (AR) technology allows interaction between the real world and objects in the virtual world in a three-dimensional form. With these advantages, AR will be a learning media that can increase students' enthusiasm for learning chemistry, especially on abstract chemistry concepts, and require the right learning media to visualize them. This type of research is Educational Design Research with the Plomp development model. The subjects of this study are UNP chemistry lecturers, chemistry teachers, and students at three senior high schools in Sumatera Barat. The object of this study is an augmented reality integrated learning media. The research instruments used were a needs analysis questionnaire, a validity test questionnaire, and a practicality test questionnaire. The data analysis technique uses the Aiken'V formula. The study results show that the developed learning media is included in the valid and practical categories with the validity values of content, construction, and quality respectively being 0.87; 0,85; and 0.85. Meanwhile, teachers' and students' average practicality score index results were 0.97 and 0.92. Thus, the learning media integrated with augmented reality technology in the chemistry concept for the E phase of SMA/MA chemistry has been successfully developed, validated, and practically used in learning.
Exploration of Student Thinking Systems Through STEM-PjBL Project Based Learning in the Science Field Sukarma, I Ketut; Hulyadi, Hulyadi; Muhali, Muhali; Azmi, Irham
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12273

Abstract

The complexity of science concepts which are interrelated with each other requires the competence to think systematically. Complex thinking which is the basis for critical, analytical, creative and metacognitive thinking is very important to master in responding to the challenges of the 21st century. The aim of this research is to explore students' thinking systems taught using the STEM-PjBL model. This research is quantitative descriptive research. The variables studied are students' thinking systems based on the ability to determine components that influence each other in the bioethanol synthesis and dehydrator processes. The population in the study was 17 students. Students are distributed in two semesters, namely semesters II and IV. The research uses pre-test and post-test systematic thinking ability tests as data collection techniques and tools. The test consists of 5 essay questions that assess students' systematic thinking competence, and the test used is analyzed for validity, discrimination power, and level of difficulty before use. This test was developed based on indicators of systematic thinking competency. Tests were given to students before and after carrying out project activities for making and dehydrating bioethanol. After carrying out the project, students strengthen their competence through computational simulations related to the project being carried out. The data obtained is then presented in a communicative graph. The research results showed that 35.2% had high system thinking, 29% medium, 35.6% low. These results show that the application of the STEM-PjBL model is able to foster students' systematic thinking competency.
Meta Analysis: The Effect of Project-based Learning on Students’ Learning Outcomes in Chemistry Learning Desyafrianti, Vanny; Aini, Faizah Qurrata
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.12315

Abstract

One of instructional model which can be implemented in Merdeka Curriculum is Project-based Learning (PjBL). In this model, students design a project based on their contextual understanding, thus having an impact on learning outcomes especially in knowledges aspect. Using meta-analysis with PRISMA method, researchers have traced various research articles and proceedings from 2020 to 2024 by using Publish or Perish with the keywords “project-based learning”, “learning outcomes”, “chemistry”, “pjbl”, “hasil belajar”, “kimia”. There are 200 articles found, after going through several stages there are seven articles that are the subject of this research. By calculating the effect size value of each study, the average effect size result was 1.1825 which was included in the high category. For summary that, the Project-based Learning model has an affect on student learning outcomes in chemistry learning, especially on the topics of acids and bases, colloids, chemical equilibrium, chemical bonds, solutions and thermochemistry.
The Relationship Between Metacognitive Ability and Self-directed Learning of Chemistry Education Students as Prospective Teacher Candrawinata, Natalia; Erlina, Erlina; Ulfah, Maria
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.12349

Abstract

Metacognitive ability and self-directed learning are crucial aspects to consider because good metacognitive skills are closely linked to academic success and self-directed learning. Students with strong metacognitive abilities are generally more capable of planning, monitoring, and evaluating their learning activities effectively. This study utilized a descriptive quantitative method with a correlational approach to examine the relationship between two variables: metacognitive ability and self-directed learning. The research was conducted in the Chemistry Education Program at FKIP Untan, focusing on 51 sixth-semester students for the academic year 2023/2024. Data were collected through indirect communication methods using the MAIT-18 and a self-directed learning questionnaire. The data analysis used descriptive statistical methods. The results indicated that the percentages of metacognitive ability and self-directed learning among sixth-semester Chemistry Education students were 79% and 68%, respectively. The Spearman Rank correlation test revealed a significance value of 0.478 >  0.05. Therefore, H0 is accepted and Ha is rejected, indicating that there is no significant relationship between metacognitive ability and self-directed learning among the students of the Chemistry Education Program at FKIP Untan.

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