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Riyanto Riyanto
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IJCER (International Journal of Chemistry Education Research)
Published by Universitas Islam Indonesia
ISSN : 25499947     EISSN : 26141426     DOI : -
Core Subject : Science, Education, Social,
Chemistry Education Environmental Science Materials Science & Nanotechnology
International Journal of Chemistry Education Research (IJCER) is a peer-reviewed journal which covers all aspect of education, including chemistry education, physic education, biology education and science education. The journal publishes original research papers, short communications, dissemination, and discussion of research, experience and perspective across a wide range of education, teaching, development, instruction, educational projects and innovations, learning methodologies and new technologies in education and learning. The IJCER journal is published every February and August in a year (semi-annual). IJCER journal is fully open access for scholarly readers. International Journal of Chemistry Education Research is published by Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, Islamic University of Indonesia. IJCER has already archived by (Indonesian Scientific Journal Database (ISJD) LIPI (Lembaga Ilmu Pengetahuan Indonesia)
Arjuna Subject : -
Articles 138 Documents
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Improving Mathematics Learning Outcomes in the Covid-19 Pandemic Era Through Contextual Teaching and Learning (CTL) Learning Models Using WhatsApp Groups for Class II Students of Kempong State Elementary School, Kapanewon Kalibawang, Kulon Progo Regency Zumariyah Zumariyah
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art8

Abstract

The purpose of this study was to determine the application of the Contexstual Teaching and Learning (CTL) learning method through WhatsApp Group. This type of research is classroom action research which is carried out in 2 cycles. Each cycle consists of 4 stages, namely planning, implementing actions, observing, and analyzing and reflecting. This research was conducted at Kempong State Elementary School, Kapanewon Kalibawang, Kulon Progo Regency. The results of this study indicate that the achievement of students in the first cycle at the first meeting the average value is 71.33 with learning completeness of 55.56% with the "Very Low" category, while the first cycle of the second meeting the average value is 75.67, the percentage is 66, 67% in the "Low" category, then in the second cycle of meeting 1 the average value was 82.33, the percentage of completeness was 77.78% with the "Enough" category. While at the second meeting of cycle II the average value was 87.44 in the "High" category with a completeness percentage of 100% with the "Very High" category. Meanwhile, teacher activities using the Contextual Teaching and Learning (CTL) learning model using WhatsApp Group in the first cycle of meeting 1 obtained an average score of 3.59, the presentation of the total score was 89.68%, with the category "Very Satisfactory". Meanwhile, in the second cycle of meeting 2, the average score was 3.84 with a presentation of 95.91%, in the "Very Satisfactory" category.
Examining learning difficulties and alternative conceptions students face in learning about hybridization in organic chemistry Issa I. Salame; David Krauss; Shafic Suleman
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art4

Abstract

Chemistry education research has demonstrated that chemistry concepts are abstract, complex, and challenging for students to learn and understand. Chemistry is the branch of science that deals with the nature and behavior of atoms, and bond formation and hybridization both play a crucial role in the discipline. The concept of hybridization deals with the description of the formation of hybrid orbitals, the prediction of bond angles and molecular geometry, and the reactivity of some organic compounds. Development of conceptual understanding of hybridization is important for effective learning about bond formation, molecular structure, bond angle, acidity, and reactivity. This research study aimed to examine alternative conceptions that students hold; the challenges that students face in learning about hybridization; and the strategies that they use to solve hybridization problems. The investigation took place at the City College of New York, an urban, minority-serving institute. Our method of data collection comprised a survey made up of Likert-type, open-ended questions as well as a hybridization-related set of problems. The number of research participants was n = 103. Our research findings suggest that developing conceptual understanding of organic chemistry concepts such hybridization and resonance structures, then relating it to the structure of molecules, is crucial to its function. The presentation of concepts such as hybridization in an oversimplified manner and students’ reliance on memorization in learning can hinder students’ development of conceptual understanding and meaningful learning. Students misestimate their competencies and abilities which can negatively impact poor performers and prevent them from addressing deficiencies in learning about hybridization. We suggest that instructors present the topic of hybridization at the three levels of representations, provide students with opportunities for active learning and knowledge construction, and nurture students’ visualization of atomic and hybrid orbitals. Keywords: science education, alternative conceptions, hybridization, atomic orbitals
Improving the Ability and Motivation of School Librarians and Teachers Using the SliMS Application Through in-House Training at SD Negeri Tukharjo Samigaluh Kulon Progo for the 2021/2022 Academic Year Redemtus Hertanto
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art9

Abstract

This study aims to increase the motivation and ability of school librarians and teachers in managing school libraries using the SLiMS application, through In House Training at SD Negeri Tukharjo Kapenewon Samigaluh, Kulon Progo Regency, Special Region of Yogyakarta. This research is a School Action Research using the In House Training method which is carried out in 2 cycles, each cycle consisting of 2 meetings. The technique of collecting data in this study was carried out using observation and documentation. The results of this study are an increase in motivation and the ability of participants (librarian staff and teachers) in managing the library by using the SLiMS application program. The results based on the acquisition of the total ability score of IHT participants in Cycle I 1st and 2nd meetings there is an increase of 4.33; while in the second cycle of the 1st and 2nd meetings, the total score obtained was an increase of 4.50; while based on the percentage of the first and second meeting cycles; there was an increase of 5.78%; as for the second cycle of the 1st and 2nd meetings there was an increase of 6.00%; while based on the motivation of the participants obtained; the total score of the first cycle of the 1st meeting reached 33.5, the second meeting reached 39.00 there was an increase of 5.65; then the second cycle of the 1st meeting the total score reached 44.00; the second meeting reached 46.33; there was an increase of 2.33; The following is based on the percentage of the first cycle of the 1st meeting reaching 67.00%; while the average number of the 2nd meeting reached 78.00%, there was an increase of 11.00%; while in the second cycle of the 1st meeting the average score based on percentage reached 88.00%; while at the second meeting it reached 92.67; there is an increase of 4.67%; while based on the ability of researchers; the results of the observation in Cycle I, the 1st meeting, the ability of researchers to manage IHT activities, the average score reached 2.61; based on percentage reached 65.30%; the 2nd meeting reached 3.3; the following based on the percentage reached 82.52%; Furthermore, the second cycle of the 1st meeting the average score reached 3.51; based on percentage reached 87.65; following the 2nd meeting it reached 3.81, while the average number of percentages reached 95.17%,
Improving the Ability to Manage Libraries for School Administration Staff and Teachers Through In-House Training (IHT) at Jumblangan Elementary School, Samigaluh, Kulon Progo Regency for the 2021/2022 Academic Year Herlina Ana Susanti
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art11

Abstract

This study aims to improve the quality of library management and services as well as the ability of the principal in managing activities through in-house training at SD Negeri Jumblangan, samigaluh, Kulon Progo regency, for the 2021/2022 academic year. This type of research is school action research which was carried out for 3 cycles. Where each cycle consists of the following 2 meetings if the research in cycle II has met the indicators of success, the research can be ended. The corrective steps are based on research procedures, which are carried out based on the stages of planning, implementation, observation, and reflection. The research subjects were librarians and teachers of SD Negeri Jumblangan, samigaluh, and Kulon Progo regency for the academic year 2021/2022, totaling 8 people. The results showed that the implementation of the first cycle at the first meeting reached 78.00% with the "enough" category. Furthermore, the results in the first cycle of the 2nd meeting obtained a percentage of 84.25%. When compared with cycle ii at the first meeting there was an increase of 6.25%. Furthermore, the results of the research in the second cycle at the first meeting obtained a percentage of 88.00%. So it can be said that there is an increase of 3.75% in the first cycle of the meeting at the second meeting
An evaluation of proposed General Chemistry learning modules by experts and teachers Remedel Dela Mines; Elsa Cajucom
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art7

Abstract

This research endeavored to assess developed and validated a proposed learning module in General Chemistry during the Second Semester, Academic Year 2021-2022 in public secondary schools in Bulacan, Philippines. Teachers play an essential role in validating and evaluation of instructional materials. As facilitators of learning, they must ensure that instructional materials serve their purpose of upholding an effective teaching and learning process. The study aimed to evaluate the proposed Grade 12 General Chemistry learning modules as perceived by Chemistry Experts and Science Teachers in the 12 public secondary schools offering STEM strand in the Division of Bulacan, Philippines. The modules are evaluated based on :(1) content, (2) format, (3) presentation and organization, (4) learning activities, (5) evaluation activities and (6) accuracy and up-to-datedness of information. The demographic profile of 11 Chemistry experts showed that the majority are female, BSED graduates in Physical Science with a doctoral degree in Development Education and 1-12 years teaching General Chemistry subject. Grade 12 Chemistry teachers are mostly females who have bachelor’s degree in Physical Sciences, with master’s units and 1-5 years of teaching Grade 12 General Chemistry in the K to 12 Curriculum. Chemistry experts and science teachers assessed the five modules using descriptive survey method employing quantitative analysis. They both evaluated the proposed learning modules satisfactory in the six dimensions. They did, however, make several suggestions for improving the proposed learning module.
Improving the Performance of Librarians and Teachers in Managing Libraries as Learning Resources Through Structured Guidance at SD Negeri Sulur Kapanewon Samigaluh Academic Year 2021/2022 Sumiyarti Sumiyarti
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art12

Abstract

This study aims to determine the implementation of a structured coaching program by describing the process of improving the performance of librarians in each cycle (I and II), and knowing the results of improving the performance of librarians and teachers in managing libraries as learning resources through structured coaching at SD Negeri Sulur Kapanewon Samigaluh in the 2021/2022 academic year. used is School Action Research. The research was carried out in two cycles, each cycle consisting of planning, implementing actions, observing, and reflecting. The subject of this research was carried out on all librarians and teachers of SD Negeri Sulur for the academic year 2021/2022. The data collection used in this study is qualitative data with percentages. Qualitative data were obtained from observation sheets on the implementation of structured coaching activities carried out by school principals on librarians and teachers supported by the results of interviews. The results obtained from this study are 1) The process of implementing structured coaching carried out by the principal has increased quite significantly from the first cycle related to the management of final results at the 3rd meeting the average score reached 81.87%; following Cycle II, the 3rd meeting, the average score based on percent reached 92.15%, an increase of 10.28%; The process of implementing structured coaching activities; what the researcher did for 30” (thirty minutes) in the study was said to be successful with the success indicator already exceeding 75%; Cycle II, 3rd meeting; 91.46% increase 18.63%; The results of improved performance in providing services to users have reached more than 75%; The activity of the first cycle of the 3rd meeting; 74.68% while Cycle II is the 3rd meeting; reached 91.36% increase reached 16.68%; The following is the active process of participants in participating in structured coaching. researchers for 30” (thirty minutes) participants in the study were declared successful with indicators of success reaching more than 75%. 91.28% increase of 21.70%; The results of improving the performance of library management through structured coaching of librarians and teachers have reached more than 80%
Project-Based Learning: Chemistry Students’ Role in Fostering the Society in Recycling the Waste Cooking Oil Imam Sahroni; Lutfia Isna Ardhayanti; Chancard Basumerda; Muhammad Miqdam Musawwa; Randy Ramadani
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art2

Abstract

Project-based learning has been used globally as one of the effective methods to evaluate student performance in achieving the learning outcome of the chemistry subject. It became one of the priorities in implementing the new policy, Merdeka Belajar-Kampus Merdeka (MB-KM) from The Ministry of Education, Culture, Research and Technology in Indonesia. The student at the university level can join a project-based learning program conducted outside the classroom and supervised by the Project supervisor. We proposed the project-based learning program to maximize the chemistry students’ role in solving the waste cooking oil in society. The purpose of this program was to introduce the chemistry student to the real problem in the society and allow the dissemination of their innovative idea. The information prevailed from observing the activity, interviewing the students, and evaluating the student's performance. This project-based learning presented that students accomplish the information and knowledge they gain from the classroom into actions to solve the real problem in society.  Keywords: project-based learning, Merdeka Belajar-Kampus Merdeka (MB-KM), waste cooking oil, chemistry students’ role
Improving Teacher Ability in Preparing HOTS Questions Through Workshop Activities at Kebonharjo Public Elementary School Kapanewon Samigaluh Kulon Progo for the 2021/2022 Academic Year Wakijem Wakijem
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art10

Abstract

The purpose of this research is to see the teacher's ability in preparing HOTS questions during the workshop and also to see the ability of the presenters in delivering material with the theme of HOTS-based question preparation at SD Negeri Kabonharjo Samigaluh. The research method used is School Action Research. The research was carried out in two cycles, each cycle consisting of planning, implementing actions, observing, and reflecting. The subjects of this study were teachers at SD Negeri Kabonharjo, Samigaluh in the 2021/2022 academic year. The results showed that the ability of teachers in preparing HOTS-based questions increased from each cycle (I and II), this indicates that workshop activities have great benefits in terms of improving the ability of teachers in preparing questions. Furthermore, the ability of the presenters in presenting the material for the preparation of Higher Order Thinking Skills (HOTS) questions also increased every cycle, meaning that the presenters had good abilities in delivering material in workshop activities
Improving Teacher Ability in Preparing HOTS Questions Through In-House Training (IHT) at Ngaliyan State Elementary School, Samigaluh, Kulon Progo Regency for the 2021/2022 Academic Year Rumino Rumino
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art13

Abstract

This School Action Research aims to improve the ability of teachers in preparing questions based on Higher Order Thinking Skills (HOTS) through In-House Training (IHT) activities at SD Negeri Ngaliyan, Samigaluh for the academic year 2021/2022. This research is a school action research conducted in 2 cycles, where each cycle consists of 2 meetings. The implementation steps using research methods/procedures are carried out based on the stages of planning, implementation, observation, and reflection. The subjects of the study were the teachers of SD Negeri Ngaliyan, Samigaluh, Kulon Progo Regency, for the academic year 2021/2022, totaling 8 people consisting of 6 classroom teachers and 2 subject teachers. The results showed that the use of In-House Training (IHT) can improve the ability of teachers in preparing Higher Order Thinking Skills (HOTS) questions. The results of the first cycle of research at the 1st meeting obtained an average score of 3.15 with a percentage of 63.03%. When compared to the results of initial observations before the implementation of IHT, there was an increase of 13.03%. Then, in the first cycle for the second meeting, the average value was 3.58 with a percentage of 71.58%. Cycle II for the 1st meeting obtained an average score of 4.22 with a percentage of 84.30%. Cycle II for the second meeting obtained an average observation result of 4.62 with a percentage of 92.30%. The results of the observations when compared with the results of the second cycle of the 1st meeting there was an increase of; 8.00%. Meanwhile, the ability of the resource persons in delivering the material shows that the results of the observation of the first cycle of actions for the 1st meeting show the ability of the resource persons in delivering the material in the second cycle of the 1st meeting, the resource persons obtained an average score of 85.70 with a percentage of 80.59% or "Good" category. Cycle II at the second meeting obtained an average value of 91.22 with a percentage of 91.21%; with the category "Very Good". The results of participant observations on the ability of resource persons in delivering IHT material turned out to have increased by 5.51%. So it can be said that IHT activities can improve the ability of resource persons in delivering material on the preparation of HOTS-based questions
Using Discovery Learning to Improve Students’ Chemical Problem-Solving Skills M. Mahfudz Fauzi Syamsuri; Indah Tri Rahmadhani; Ila Rosilawati
IJCER (International Journal of Chemistry Education Research) VOLUME 7, ISSUE 1, April 2023
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol7.iss1.art2

Abstract

This study aims to describe the effectiveness of discovery learning on electrolyte and non-electrolyte solution materials to improve problem-solving skills. This research was conducted at YP Unila Bandar Lampung High School by using the Pretest-Posttest Control Group design. The results showed that the average n-gain in the experimental and control classes were 0.68 (medium category) and 0.45 (medium category), respectively. Based on statistical test results there are differences in the average n-gain, so it can be said that discovery learning on electrolyte and nonelectrolyte solution material is effective in improving problem-solving skills

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