cover
Contact Name
Setia Rahmawan
Contact Email
setia.rahmawan@uin-suka.ac.id
Phone
+6285729537765
Journal Mail Official
jtcre@uin-suka.ac.id
Editorial Address
Department of Chemistry Education 2nd floor, Faculty of Education and Teaching Training Universitas Islam Negeri Sunan Kalijaga Yogyakarta Marsda Adisucipto Street, Yogyakarta Phone +62-274 519739 Fax. +62-274 540971
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Journal of Tropical Chemistry Research and Education
ISSN : 2685144X     EISSN : 26855690     DOI : https://doi.org/10.14421/jtcre2020.22-01
Core Subject : Science, Education,
This journal encompasses original research article and review articles related tropical chemistry, but it is not restricted to, including: Lab based research Teaching & Learning Material Learning Learning Media/Multimedia Evaluation & Assessment Higher Order Thinking Skills Science, Technology, Engineering, and Mathematics (STEM) Education Chemical Content Learning Strategy School Laboratory Experiment
Articles 84 Documents
Analysis of Basic Laboratory Skills of Science Education Students Using Pictorial-Based Instruments Rahayu, Dea Santika; Muqtada, Moh. Rikza
Journal of Tropical Chemistry Research and Education Vol. 5 No. 2 (2023)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2023.52-06

Abstract

Laboratory skills are an important aspect of natural sciences in schools and higher education, often linked to psychomotor aspects of learning. Several studies have developed several methods that can be used to evaluate laboratory skills, for example, the use of observation sheets equipped with rubrics. However, often using this method requires a longer learning time. Therefore, there is a need for research that examines how to evaluate students' basic laboratory skills. This research aims to analyze students' basic laboratory skills using pictorial-based instruments. This research method uses descriptive qualitative. This instrument is equipped with pictures that provide visualization. The basic laboratory skills are focused on experiments on making standard solutions from solids, making standard solutions from concentrated solutions, and acid-base titrations. Based on the analysis, it was found that the basic laboratory skills of science students in the experiment of making standard solutions from solids contained six basic skills, including selecting tools, weighing solids, transferring solids into a beaker, putting them in a volumetric flask, marking the solution, reading the meniscus mark. In the experiment of making a standard solution, there are five basic skills, namely selecting tools, taking the stock solution, transferring it into a volumetric flask, marking the solution, and reading the meniscus mark. The titration experiment consists of 8 skills, including selecting equipment, taking the analyte solution, taking the titrant solution, adding a titration indicator, using the titration technique, observing the endpoint of the titration, reading the meniscus, and calculating the solution's concentration.
Development of Motion Graphic Video on Class XI Colloid Materials in Increasing Students' Interest in Learning abd.latif
Journal of Tropical Chemistry Research and Education Vol. 6 No. 1 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.61-02

Abstract

Colloidal material is an abstract material that causes students to have difficulty learning it. The difficulty of colloidal material causes students' interest in learning to decrease. This research aims to produce motion graphic video-based learning media on colloid system material to increase students' interest in learning. This research uses research and development (R&D) methods with a 4-D model, which consists of four stages, namely define, design, develop, and disseminate. However, this development is limited to the development stage only. The product was reviewed by the supervisor and four peer reviewers and then validated by one material expert and one chemist. The quality of the media was assessed by four reviewers (high school/MA chemistry teachers) and responded to by 10 high school/MA students. The Linkert scale is used as a product quality assessment questionnaire sheet and the Guttman scale is used as a student response questionnaire sheet. The product produced in this research is a chemistry learning video on colloid system material. The assessment results from material experts obtained an ideal percentage of 80% and were included in the good category. The results of the media expert assessment obtained an ideal percentage of 85% and were included in the very good category. The assessment results from the reviewers (four SMA/MA chemistry teachers) obtained an ideal percentage of 91.36% and were included in the very good category. The results of the responses of ten high school students obtained an ideal percentage of 95%. Based on the assessment results, it can be concluded that the motion graphic video developed can be used as an alternative learning media for colloid system material to increase interest in learning
The Effect of Chemo-Entrepreneurship-Based Chemistry Learning Integrated with Values Education on Eleventh-Grade Students’ Learning Outcomes and Motivation Ningrum, Sutria; Suprihatiningrum, Jamil
Journal of Tropical Chemistry Research and Education Vol. 6 No. 1 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.61-03

Abstract

Chemistry learning innovations must be continuously pursued to prepare students for Era Society 5.0 and overcome academic and non-academic problems, including juvenile delinquency. One of the chemistry learning innovations carried out by this study is the application of chemo-entrepreneurship-based chemistry learning integrated with Values Education (VE). This study aimed to offer evidence for developing student learning outcomes and motivation through integrating values education into chemo-entrepreneurship-based chemistry learning. A quasi-experimental study was conducted to determine the effect of chemo-entrepreneurship-based chemistry learning integrated with VE on learning outcomes (affective and cognitive domains) and the motivation of grade XI students at Senior Secondary School Ajisaka, Tulang Bawang, Lampung. The sample was selected using a saturated cluster random sampling technique to determine the control group (XI-1) and the experimental group (XI-2). Students learning outcomes on the affective domain and motivation were measured by the Mann-Whitney test while learning outcomes on the cognitive domain was measured by independent sample t-tests on pretests and posttests taken by students. The study demonstrated that students exhibited a statistically significant change in learning outcomes and motivation due to these treatments.
Sundanese Perceptions and Preferences Towards Lalaban Menu: an Ethnoscience Study in Learning Maryanti, Sri; Sriyati, Siti; Liliawati, Winny
Journal of Tropical Chemistry Research and Education Vol. 6 No. 1 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.61-04

Abstract

Lalapan, a typical Sundanese side dish, has cultural significance and high nutritional value for its people. The purpose of the study was to gain insight into how Sundanese people perceive and like the lalaban menu, the traditional menu in their culture as well as their preferences in terms of taste and presentation. This study, reveals the meaning and cultural values inherent in the lalaban menu in Sundanese culture, as well as identifying specific elements of the lalaban menu by scientific principles. This study will also analyze the needs of students in science learning in junior high schools and use these findings as a basis for designing ethnoscience-based learning models that incorporate Sundanese local wisdom around the lalaban menu. This research is expected to help improve understanding of the meaning and value of Balaban culture in Sundanese culture. The research method is an explorative survey with observation techniques through the dissemination of questionnaires with an ethnoscientific approach. Data were collected through observation of 350 participants from 10 cities/districts. The data obtained were analyzed descriptively. The results showed that Balaban was already known to the public, lalapan has a taboo that people believe as a myth. However, there is a scientific explanation from the perspective of ethnoscience, fresh vegetables are important and consumed not just for cultural heritage but there are benefits that can be obtained, types of fruits, vegetables, or plants that are used as potential fresh vegetables that can be consumed, nutritional studies of fresh vegetables, characteristics or inventory of plants used as fresh vegetables, have symbolic meaning as balance, simplicity, and closeness to nature. Other perceptions of tehadap fresh vegetables according to surveys that have been conducted variously. Preference for fresh vegetables is influenced by taste, texture, and nutritional value. In conclusion, the perception and preference of lalaban are not only based on taste and texture but also influenced by cultural significance and nutritional value.
Ethno-Science Study of Bamboo as A Building Material of Baduy Community for Environmentally Friendly and Sustainable Materials Chemistry Learning Widyaningsih, Mia; Sriyati, Siti; Liliawati, Winny; Mudzakir, Ahmad
Journal of Tropical Chemistry Research and Education Vol. 6 No. 1 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.61-05

Abstract

This study aims to develop the chemical aspects of the local practice of the Baduy community in utilizing bamboo as a traditional house building material that can be integrated in material chemistry learning. The research method is a literature study of scientific journals, books, online articles, and research reports related to bamboo as a building material, which is then analyzed by comparing local knowledge and scientific concepts to identify potential integration into science learning, especially chemistry. The result of this study is that the integration of natural science with local practices, such as bamboo used for environmentally friendly and sustainable building materials, is an innovative way to teach materials chemistry. The study of bamboo as a building material can help students understand chemistry concepts, especially the structure and physicochemical properties of materials so that students can relate the mechanical and thermal characteristics of materials to their structure in a more relevant and practical way. Thus, chemistry learning is not only limited to theory and laboratory experiments, but also includes real applications that are relevant to everyday life in society.
Development of a Mental Model Diagnostic Test using Predict, Observe, Explain (TDM-POE) on Voltaic Cell Materials Rahayu, Dea Santika; Rahayu, Dita Puji; Yanti, Meili
Journal of Tropical Chemistry Research and Education Vol. 6 No. 1 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.61-06

Abstract

Understanding chemical concepts as a whole show that students can connect three levels of chemical representation. The three levels in chemical representation are related and reflected in students' mental models. A teacher must know the student's mental model as a reflection of learning. This research aims to develop an instrument for students' mental models on voltaic cell submaterials using the prediction-observation-explanation (TDM-POE) mental model diagnostic test. The method used in this research is the research and development method using the Analysis, Design, Develop, Implement, and Evaluate (ADDIE) development model. The instrument was validated by five validators consisting of four lecturers in the Department of Chemistry Education and one chemistry teacher at school. Validity is determined by content validity response. Then, the instrument was tested on class XII students who had received learning about voltaic cells. The instrument consists of four questions for four concepts: voltaic cell construction, calculating standard cell potential values, voltaic cells in alkaline batteries, and corrosion phenomena. Each question consists of 3 stages, namely, the first stage contains questions about predicting phenomena (predict), the second stage contains video or image observations (observe), and the third stage contains detailed explanations (explanation). The validation results show that the validity of the TDM-POE instrument obtained a score of 0.99, which is categorized as valid. So, the TDM-POE instrument can be used to understand chemical concepts.
Ethnoscience Study of Reed Plants (Imperata Cylindrica (L.)) in the Ume Kbubu of the Timor Tribe Baifeto, Ekri Pranata Ferdinand; Sriyati, Siti; Liliawati, Winny; Tohe, Humairah Ansar
Journal of Tropical Chemistry Research and Education Vol. 6 No. 2 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.62-01

Abstract

The alang-alang plant is believed to be a good thermal insulation, but unfortunately, it is starting to be abandoned. The purpose of this study was to investigate the use of reed plants (Imperata cylindrica (L.)) as a basic material in the manufacture of ume kbubu of the Timorese tribe. This research was conducted in the South Middle Timor District, East Nusa Tenggara Province. The method used in this research is the triangulation method, which analyzes primary data in the form of observation data, interview data, and literature studies. The results showed that alang-alang (Imperata cylindrica (L.)) is used by Timorese people as an ume kbubu roof due to several factors such as its abundant availability, cheap, strong, durable, and cheap. Through scientific studies, it can be explained that alang-alang (Imperata cylindrica (L.)) has a strong structure, contains high lignin and cellulose, is hydrophobic, and has anti-microbial and antioxidant properties that can help protect plants from pests and diseases. In addition, the influence of the shape of the roof construction using alang-alang which has a hollow structure makes the ume kbubu roof a good thermal insulator. The study of community science and scientific science on using reeds (Imperata cylindrica (L.)) as a basic material for making ume kbubu of the Timorese tribe can be integrated into science learning in schools and universities.
Ethnoscience Studies in Traditional Food of North Maluku "Papeda" and Its Implementation of Chemical Concepts in Science Learning Tohe, Humairah Ansar; Sriyati, Siti; Liliawati, Winny; Tohe, Ansar
Journal of Tropical Chemistry Research and Education Vol. 6 No. 2 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.62-02

Abstract

Ethnoscience is a science learning approach that implements local wisdom (regional culture) using certain cultural products. Local wisdom can be in food and drink, traditional ceremonies, dances, games, and traditional languages. One of the traditional food-based local wisdom is Papeda. Papeda is a traditional food made from sago flour. The purpose of this research is to reconstruct the original science of the community into scientific science and to review the concept of chemistry in science learning in the process of making papeda. The research method used is descriptive qualitative research through interviews and literature studies. The results of this study indicate that the reconstruction of indigenous knowledge into scientific science from the local wisdom of traditional food typical of North Maluku, namely Papeda, can be used as a learning resource for students because it has relevance to various chemical concepts in science learning. Chemical concepts contained in the process of making papeda are substances and their changes, colloids, physical and chemical changes, thermochemistry, macromolecules (especially carbohydrates), and food and nutrients with their relationship to the digestive system.
Boosting Engineering Capabilities through Science Learning Rohiat, Salastri; Widodo, Ari; Octaria Prajayanti, Atiek; Meta Pusparini, Rakai
Journal of Tropical Chemistry Research and Education Vol. 6 No. 2 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.62-06

Abstract

This research aims to review increasing engineering capabilities through science learning using the case study method. The primary focus of the research is to understand how the integration of science concepts in the engineering curriculum can improve students' technical and analytical skills. The case study was conducted at a vocational high school that applies an interdisciplinary approach between science and engineering. Data was collected through classroom observations, interviews, and questionnaires. The research results show that students who are involved in science learning integrated with engineering can demonstrate an understanding of engineering concepts, problem-solving abilities, and critical thinking skills. In addition, teaching methods that focus on scientific projects and experiments have proven effective in building students' interest and motivation towards the field of engineering. This research concludes that science learning applied in an integrative manner can be an effective strategy in improving students' engineering capabilities
The Ethnoscience Study on Eucalyptus Oil Distillation in Buru Island as a Source for Learning Chemistry Muhammad Rizal Hardiansyah; Rahmiati Darwis; Nur Hikmah
Journal of Tropical Chemistry Research and Education Vol. 6 No. 2 (2024)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2024.62-03

Abstract

Chemistry is a branch of science closely related to daily life. Ethnoscience cannot be separated from science, especially in the study of chemistry. The tradition of distilling eucalyptus oil (Melaleuca cajuputi) on Buru Island has been carried out traditionally for generations. This research aims to analyze and reconstruct the indigenous knowledge of the community in the eucalyptus oil distillation process into scientific knowledge that can be used as a source for learning chemistry. This research used a qualitative approach based on ethnoscience with interview, observation, and documentation methods. Data analysis employs the Miles-Huberman model, which consists of data reduction, data presentation, conclusion drawing, and verification. The results of the research showed that the eucalyptus oil distillation process can be explored in science materials or concepts related to separation techniques, differences in density, phase changes, and substance pressure. The ethnoscience study results indicated the potential of ethnoscience to be applied in chemistry education.