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Dea Santika Rahayu
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ijose@untidar.ac.id
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INDONESIA
Indonesian Journal of Science and Education
Published by Universitas Tidar
ISSN : 25985213     EISSN : 25985205     DOI : https://doi.org/10.31002/ijose
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology Physics
Indonesian Journal of Science and Education published a scientific paper on the results of the study and review of the literature in the science and education. In detail, the scopes of this journal are research in 1) Science education; 2) Biology education; 3) Physics education; 4) Chemistry education; 5) Science Educational Technology; 6) Environmental science; 7) Physics; 8) Chemistry; and 9) Biology.
Arjuna Subject : Umum - Umum
Articles 94 Documents
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The Effect of Using Ice Breaking on Learning Motivation of Elementary School Students in Learning Science Taupik, Riska Putri; Fitria, Yanti; Syarif , Muhammad Ilham; Amini, Risda
Indonesian Journal of Science and Education Vol. 7 No. 2 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i2.735

Abstract

Low learning motivation among elementary school students remains a major challenge in science education. This study aimed to investigate the effect of using ice breaking activities on students’ learning motivation in science classes. A quasi-experimental design was employed with two groups of fifth-grade students in an elementary school in West Sumatra, Indonesia. Data were collected through questionnaires and analyzed using the Paired Sample t-test. The findings revealed that the average motivation score of the experimental group increased from 49.84 (pre-test) to 82.63 (post-test), while the control group showed a smaller improvement. The t-test result (t = 3.84, p < 0.05) indicated a significant effect of ice breaking on students’ learning motivation. These findings suggest that incorporating ice breaking techniques can enhance students’ engagement and focus during science learning, making lessons more dynamic and enjoyable. Future research may explore different types of ice breaking activities and their impact on other cognitive or affective learning outcomes.
Analysis of VAK Learning Styles of VIII Grade Students in Science Nailatus Sholihah, Nailatus Sholihah; Erna Wijayanti
Indonesian Journal of Science and Education Vol. 7 No. 2 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i2.758

Abstract

Science learning is a process that is intentionally designed to facilitate the process of learning science. Based on initial observations made by researchers, it is known that MTs Nahjatus Sholihin students have not understood their respective learning styles, so students have been unable to maximize them in the science learning process. This study aims to analyze the VAK (Visual, Auditorial, Kinesthetic) learning styles of VIII-grade students in science subjects at MTs Nahjatus Sholihin, Rembang Regency. This research is quantitative descriptive research. The subjects of this study were all VIII-grade students at MTs Nahjatus Sholihin, with a total of 86 students. This study used the total sampling technique. Data collection methods were carried out through observation, questionnaires, and documentation. Based on the results of observations, it is known that from each class VIII that was analyzed for learning styles, the highest percentage of students had a kinesthetic learning style, with a percentage of 45% in class VIIIA, 40% in class VIIIB, and 41% in class VIIIC, while the lowest percentage of students had a visual learning style with a percentage of 22% in class VIIIA, 29% in class VIIIB, and 28% in class VIIIC.
The Optimization of Chlorophyll Extraction from Ulva Sp. with Ultrasound-Assisted Liquid Biphasic Systems Method Susilowati; Humaidi, Fakhri Arkaan; Fachri, Boy; Palupi, Bekti; Rizkiana, Meta Fitri; Rahmawati, Istiqomah; Amini, Helda Wika
Indonesian Journal of Science and Education Vol. 8 No. 1 (2024): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v8i1.1085

Abstract

Ulva sp. is a type of green algae that is easily found in the shallow seas of Indonesia and contains various bioactive compounds. Chlorophyll is a bioactive compound that functions as a natural dye, free radical scavenger, and antioxidant in the body. Chlorophyll extraction with conventional methods requires a relatively long time and large amount of solvent. In this research, chlorophyll extraction from Ulva sp. with the Ultrasound-Assisted Liquid Biphasic System (UALBS) method. Ulva sp. as much as 2.5 grams mixed in acetone solvent, added K2HPO4 solution, and carried out the sonification process in a dark room. The extraction process performs at a parameter range of 5-15 minutes, ratio 0.05-0.1 g/mL, and 60-100 mesh particle size. The extracted filtrate was added with petroleum ether and distilled water to form a biphasic condition. The extracted chlorophyll was analyzed with chromatography and spectrophotometry method. Antioxidant activity was analyzed using the DPPH method. The optimum result of Ulva sp. chlorophyll extraction at an extraction time of 10 minutes, the ratio of solids to solvent was 0.1, the particle size of 60 mesh produced a yield of 1.88% with chlorophyll a 20.13664%, chlorophyll b 21.58672% and total chlorophyll 41.71012%, and the percentage inhibition 45.32%.
Efectiveness of Cooperative Learning Model Type Learning Together (LT) on Learning Outcomes and Creativity of Students on Acid-Base Material Rahmawan, Setia; Yuliana, Elisa
Indonesian Journal of Science and Education Vol. 7 No. 2 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i2.1095

Abstract

This study aims to determine the effectiveness of Learning Together (LT) type cooperative learning model on learning outcomes and creativity of students on acid-base material in class XI MIPA SMA Muhammadiyah 3 Yogyakarta. The population of this study were all students of class XI MIPA SMA Muhammadiyah 3 Yogyakarta which amounted to 93 students and divided into 3 classes, namely class XI MIPA 1, XI MIPA 2, and XI MIPA 3. The samples of this study were class XI MIPA 2 as the control class and class XI MIPA 3 as the experimental class, each class consisting of 31 students. This research method is a quasi-experiment. The design used is nonequivalent control group design. Data collection techniques using test questions and filling out questionnaire sheets of students’creativity. Data analysis techniques used are normality test, homogeneity test, and hypothesis testing (Mann Whitney test and independent sample t-test). Based on the results of the Mann Whitney test analysis, the Sig (2-tailed) value of 0.000 <0.05 was obtained, so H0 rejected and H1 was accepted, meaning that the Learning Together (LT) type cooperative learning model was effective on learning outcomes on acid-base material. Based on the results of the independent sample t-test analysis, the Sig. 0.005 < 0.05, so that H0 rejected and H1 was accepted, meaning that the Learning Together (LT) type cooperative learning model is effective on students' creativity in acid-base material.
Bibliometric Methods: Analysis of the Development Potential of Ethnoscience-based Science Literacy Modules in Chemistry Learning Rahmawan, Setia; Rahayu, Dea Santika
Indonesian Journal of Science and Education Vol. 7 No. 2 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i2.1104

Abstract

There still needs to be more research on the potential analysis of the development of ethnoscience-based science literacy modules in chemistry learning using bibliometric tools. Ethnoscience-based science literacy modules still need to be found and used in chemistry learning. This research aims to analyze the novelty and effectiveness of ethnoscience-based science literacy modules in chemistry learning. The subject of this research is a science literacy module based on ethnoscience in chemistry learning. In this study, the researchers also analyzed articles that have been filtered based on topics based on local wisdom-based science literacy modules. The analysis contains several components: title, year, doi, author, method, outcome, and conclusion. The research uses an approach that uses the method of Systematic Literature Network Analysis (SLNA) assisted by bibliometric tools as the medium used in analyzing the article. The data obtained was many articles from the SCOPUS database, which had previously defined some criteria for capturing it. The criteria are related to the year of publication, keyword, and language selection. The application used in this study is the VOS Viewers application. The results show that research related to ethnoscience-based science literacy modules in chemistry learning is still highly feasible, given the numerous constraints in some schools. However, it should be noted that ethnoscience-based science literacy cannot replace scientific literacy globally because of the global literacy capabilities needed in everyday life.
Using Electrical Charge Method to Understand Biochemical Reactions Yuen, Pong Kau; Lau, Cheng Man Diana; Yuen, Kuok In Gabriel
Indonesian Journal of Science and Education Vol. 8 No. 2 (2024): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v8i2.1351

Abstract

Redox reactions are important in many physiological processes. Oxidation numbers are commonly used for balancing redox reactions and understanding metabolic reactions. When oxidation number cannot be assigned, it is difficult or sometimes even impossible to understand the biochemical redox reactions. This article applies the electrical charge method, which can balance redox reactions when the oxidation number is unknown. It uses H+, O, H2O, and electric charge as balancing devices. This method allows the net-charge to be quantified, redox terms to be defined, and metabolic redox reactions to be classified and understood. The net-charge is also a new electron-counting parameter for understanding biochemical redox reactions.
Ethnobotany of Medicinal Plants in the Sumber Harum Village Community, South Sumatra Maulia, Wirani; Susanti, Try; Andesmora, Evan
Indonesian Journal of Science and Education Vol. 8 No. 2 (2024): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v8i2.1358

Abstract

This study describes the potential of plants and the culture of the people in Sumber Harum Village, utilizing medicinal plants around them, which shows the interaction of the community with medicinal plants. Data and information about traditional medicinal plants in Sumber Harum Village and how to use them have yet to be available and documented, especially regarding cultivated and wild medicinal plants. The purpose of this study is to identify the types of traditional medicinal plants, how plants are used by the Sumber Harum Village Community, and analyze community knowledge related to medicinal plants. The research method used is descriptive quantitative, with observation techniques, semi-structured interviews, questionnaires, documentation, collection of plant samples and identification of medicinal plants. Data were analyzed using the Local User's Value Index (LUVI). The research results found that there are 93 species of medicinal plants in Sumber Harum Village, consisting of 75 species of cultivated medicinal plants and 18 species of wild medicinal plants, each of which is grouped into 50 families. The way of utilizing medicinal plants is by boiling them, consuming them directly, pounding them, grating them, squeezing them, and pasting them. The LUVI value of medicinal plants has two categories; the highest value in the cultivation category is avocado leaves (Persea Americana P.Mill) with a value of 0.0689, while the highest type of plant in the wild medicinal plant category is ciplukan (Physalis angulate L.) with a value of 0.0033.
STEM-7E Learning Cycle Learning Tools with Formative Assessment to Enhance Critical Thinking Nukhba, Rania
Indonesian Journal of Science and Education Vol. 8 No. 1 (2024): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v8i1.1394

Abstract

Maximum learning requires planning and strategies in learning. This study aims to develop a learning tool product for dynamic fluid material based on STEM-7E Learning cycle with formative assessment to improve critical thinking skills of high school students. This research uses the research and development (R&D) method by following the stages of the 4D model and carried out until the develop stage. After the product was developed, the validity of the product was tested by two validators and 32 students of SMA Brawijaya Smart School Malang for the practicality test. The overall product validity test results were 100% and the product practicality test results were 98.25%. Based on the results of the validity and practicality tests, the developed product has a very valid and very practical category. 
Implementation of an E-Module on The Diversity of Living Things to Enhance Critical Thinking Skills and Learning Independence Nuryunita Dewantari; Lestari, Ayu
Indonesian Journal of Science and Education Vol. 8 No. 2 (2024): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v8i2.1429

Abstract

Critical thinking is important because it enables individuals to analyze information objectively, make well-reasoned decisions, and solve problems effectively. But, it is a decline in international learning outcomes due to the pandemic. The aim of this research is to analyze the effect of using an e-module on the diversity of living things to enhance students' critical thinking skills and learning independence. The research design used was quasi-experimental with a nonequivalent control group design. Two groups with a total of 74 students were selected for this study using purposive sampling. The instruments used in this research included a written test to assess critical thinking skills and a questionnaire to evaluate learning independence. The data analysis conducted included an independent samples t-test and an n-gain test. Based on the results of an independent samples t-test, there is a significant difference between the two groups in students' critical thinking skills and learning independence. N-gain tests also support these findings, with critical thinking skills scores of 0.60 in the experimental class and 0.57 in the control class. Additionally, learning independence scores were 0.78 for the experimental class and 0.36 for the control class. It can be concluded that there is a significant positive effect of using the e-module on the diversity of living things to enhance students' critical thinking skills and learning independence.
Implementation of Argument Driven Inquiry Instructional Model to Improve Cognitive Learning Outcomes Mazita, Aza; Siswanto Siswanto; Suwito Singgih; Nuryunita Dewantari; Djoko Sri Bimo
Indonesian Journal of Science and Education Vol. 8 No. 1 (2024): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v8i1.1446

Abstract

Cognitive learning outcomes are important basic skills that students must master. Science learning must be designed so that it can optimally provide students with the cognitive dimension. The importance of cognitive learning outcomes is in contrast to conditions in the field. Students' cognitive abilities in science learning are still low, especially at levels C2, C3 and C4. Observation results at Ihsanul Fikri Mungkid IT Middle School show that students' cognitive learning outcomes are still below the specified average, namely 78. The aim of this research is to analyze the effectiveness of learning using the Argument Driven Inquiry model in improving junior high school students' cognitive learning outcomes. This research uses a quantitative approach of the Quasi Experiment type, data analysis is carried out using the Mann Whitney test, N-Gain test, and effect size test. The research results show that the Argument Driven Inquiry (ADI) learning model is effective in improving the cognitive learning outcomes of junior high school students with an N-Gain of 0,7444, which is in the high category.

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