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Dea Santika Rahayu
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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 96 Documents
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Morphological Analysis for Identification and Classification of Fungal Species Diversity in Situ Gede Area, Dramaga, Bogor Ramadhani, Raihan; Mutmainah, Cintami Dewi; Putri, Nurlaila; Zahira, Saffana Restu; Mahardhika, Wahyu Aji; Putra, Ivan Permana
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.v8i2.1527

Abstract

Mushrooms are cosmopolitan organisms with very high biodiversity. Macro fungi, or mushrooms, are most commonly found in various regions of the tropical Earth. However, mushrooms in Indonesia have not been extensively explored and identified. Therefore, this research aims to identify several mushroom species found in the Situ Gede area, Bogor, West Java. Mushroom identification is carried out by collecting and measuring samples with a scale comparison in their natural habitat. The samples are then dried as a dry herbarium or soaked in alcohol as a wet herbarium. Four mushrooms were successfully identified, three of which belong to the phylum Basidiomycota and one belongs to the phylum Ascomycota. Some of these mushrooms include Lentinus arcularius, Lentinus sp., and Termitomyces microcarpus, which belong to the phylum Basidiomycota, while Xylaria polymorpha belongs to the phylum Ascomycota. Some fungi can be used as a source of food and also as a source of medicine.
Why is Chemistry Education? Exploring the Motivation of Student Choices Rahmawan, Setia; Rian Nurhadi, Atep; Mursalin, Enggal; Darwis, Rahmiati
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.v8i1.1565

Abstract

Learning motivation is critical to educational success, influencing students' engagement, persistence, and overall performance. Despite its importance, motivation determines students' choices for future careers and struggles in participating in learning activities. The aim was to characterize students' chemistry learning motivation in detail using the Academic Motivation Scale - Chemistry (AMS-Chemistry). This study employs a descriptive qualitative research design. The qualitative approach allows an in-depth exploration of personal experiences and perceptions of learning motivation in chemistry education. The AMS-Chemistry instrument consists of 28 statement items that measure aspects of amotivation, three types of extrinsic motivation, and three types of intrinsic motivation. The results show that the motivation profile to learn Chemistry in Chemistry Education students using the AMS-Chemistry instrument on the amotivation subscale tends to disagree (55,46%). On intrinsic motivation, the to know subscale tends to agree (65,80%) strongly, the to accomplish subscale has a high score on strongly agree (48,85%) responses, and the to experience subscale tends to respond strongly agree (35,34%). Extrinsic motivation includes the external regulation subscale tending to strongly agree (55,17%) and the introjected regulation subscale having a high score on strongly agree (62,36%) responses. The identified regulation subscale has a strongly agree (68,97%) response tendency.
Scientific Literacy Skill in Science Learning based on Ethnoscience Yasir, Mochammad; Annuria Auliya Rahma; Mubarok, Husni; Zakaria, Nurul Sabihah
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.v8i2.1643

Abstract

Science literacy is very much needed in the future because it encourages students to solve problems and investigate scientifically. However, students' science literacy is currently still low, resulting in environmental ignorance. Students' low science literacy is attempted to be improved by conducting ethnoscience-based science learning by integrating environmental problems, science materials, and scientifically tested community knowledge. This study aims to determine the differences in science literacy abilities in ethnoscience-based science learning. This type of research is Pre Experimental research with a One Group Pretest-Posttest design. The research was conducted in the even semester of the 2023/2024 academic year at SMP Al Hikam Burneh. The research population was all students of class VII. The sample used was class VII-B as many as 22 students who were taken using the Purposive Sampling technique based on teacher recommendations regarding student abilities. The research instrument used was a science literacy test consisting of 6 essay questions. The data collection method used a test. The data analysis technique used descriptive statistics and paired sample t-test. The results of the study obtained (1) the average value of the pretest of students' scientific literacy skills was 53.00 and the posttest was 79.98; and (2) the results of the paired sample t-test were --12,978  2,079  11,878 which showed that students' scientific literacy skills experienced differences after ethnoscience-based science learning. It can be concluded that there are differences in students' scientific literacy skills in ethnoscience-based science learning.
Improving Students' Learning Motivation through STEM-Engineering Design Process (EDP) Learning on Solar System Topic Shofiah Jihni; Nanang Winarno; Achmad Samsudin; Ahmad, Nur Jahan; Aritonang, Rika Magdalena
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.v8i2.1669

Abstract

Learning in the fields of science, technology, engineering, and mathematics, or STEM, is the focus of attention not only by school teachers but also all stakeholders involved. Various efforts have been made to improve the quality of the learning process and curriculum in these fields. The activities students do during learning are influenced by motivation, so motivation is very important for students to complete tasks and build knowledge. This study aims to analyze the improvement of students' learning motivation by using the STEM-Engineering Design Process (EDP) on the topic of the Solar System. This study used a pre-experimental method with One Group Pretest-Posttest. The data collection tool used in this study is the Motivation Sefl regulation questionnaire. This research was conducted in one of the schools in Bandung, Indonesia. The subjects in this study were 25 seventh-grade students consisting of 11 boys and 14 girls. The results showed a significant increase in students' learning motivation with a mean pretest of 76% and a mean posttest of 89%. Based on the average N-Gain score of 0, 51, the four dimensions are interpreted as obtaining a moderate N-Gain. Based on the study's results, it was found that STEM-Engineering Design Process (EDP) learning can increase students' learning motivation, especially in science lessons.
The Relationship Between Sleep Quality and Stress Level in Biology Education Students Wijayanti, Erna; Eka Yuliani, Apreza; Bulut, Sefa
Indonesian Journal of Science and Education Vol. 9 No. 1 (2025): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v9i1.1703

Abstract

Sleep is a fundamental physiological process essential for maintaining mental and physical health. University students, particularly those in demanding academic programs, often experience sleep disturbances that may influence their stress levels. This study aimed to determine the relationship between sleep quality and stress levels among Biology Education students at UIN Walisongo Semarang. A descriptive–analytic study with a cross-sectional design was conducted involving 36 students selected through proportional random sampling from the 2020–2022 cohorts. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI), while stress levels were assessed using the Perceived Stress Scale (PSS). Data were analyzed using the Chi-square test at a 95% confidence level (α = 0.05). The findings indicated that most respondents (97.2%) experienced poor sleep quality and moderate stress levels (86.1%). Statistical analysis showed no significant relationship between sleep quality and stress levels (χ² = 0.165, p = 0.920). Although most students experienced poor sleep quality and moderate stress, no significant association was found between these two variables. Further research with a larger and more diverse sample is recommended to confirm these findings and explore additional factors affecting students’ sleep and stress patterns.
Potential for Tofu Industry Liquid Waste Pollution in Mejing Village, Candimulyo Subdistrict, Magelang Ismawati, Riva; Rahayu, Rina
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.v8i2.2099

Abstract

This research is intended to analyze the quality of tofu liquid waste, analyze the quality of river water around the tofu industry in Mejing Village and analyze government policies in managing tofu liquid waste. The research method used is grab sampling, observation, and interviews to obtain primary data. Secondary data from journal articles and research reports are used to support primary data. The research results show that the quality of tofu liquid waste has a pH of 2.8-33, a temperature of 41-51 oC and is not in accordance with established quality standards. Tofu liquid waste also has a pungent sour odor, yellowish color, and contains many suspended particles. Disposal of tofu liquid waste into the waters causes the river flowing in Mejing Village to be dirty and indicates light to heavy pollution. The government has set quality standards for wastewater produced by the tofu industry. Unfortunately, the tofu industry in Mejing Village does not comply with this regulation properly. The low awareness of tofu industry players to manage liquid waste is caused by various factors. Good communication between the government and industry players is needed so that industry players know how to process the liquid waste they produce. The government needs to supervise the application of government regulations related to the management of tofu liquid waste and provide sanctions to industries that violate it. Planning for a communal IPAL as well as an appropriate solution must be realized immediately so that the problem of tofu liquid waste in the tofu industry center in Mejing Village can be resolved immediately.
Development of PBL-Based Mechanics and Fluids Textbooks Combined with Flipped Classroom to Improve Physics Complex Problem-Solving Skills Eko Juliyanto; Harsi Admawati
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.v8i2.2184

Abstract

In the present and the future, the ability to solve Complex Problems has a role in a person's success in the work environment, community environment and family environment. Although this ability is important, classroom learning has not emphasized the development of complex problem-solving skills. Learning in the classroom still emphasizes the development of static problem-solving skills. This research aims to develop a textbook in the form of a PBL-based e-module combined with Flipped Classroom to be able to improve the ability to solve complex physics problems. In addition, this study also analyzes the validity and effectiveness of the textbook. This type of research is RnD research. The ADDIE RnD model is widely used for the development of teaching materials, the development of learning models and the development of learning media. The ADDIE model was chosen as the development model in this study because it is flexible. The stages of the ADDIE model are Analysis, Design, Development, Implementation, and Evaluation. The results of this study show that the characteristics of Mechanics and Fluids textbooks that are suitable in the application of the PBL model combined with Flipped Classroom to improve Complex Problem Solving skills are a) Deepening the material that is done before the lecture equipped with practice questions; b) Problems presented in the Student Worksheet (LKM) in the textbook in the form of contextual problems; c) Student Worksheets (MFIs) in the textbook involve dynamic situations by utilizing the PhET Simulation application. The results of textbook validation by three validators were categorized as valid with an average score of 4.52 on a scale of 5. The results of the t and Ngain tests showed that the Mechanics and Fluids textbook based on the PBL model combined with the Flipped Classroom was effective in improving the ability to solve complex physics problems.
Implementation of the Project-Based Learning (PjBL) Model in Herbal Plant Processing as an Innovation in Ethnoscience-Based Biology Learning Sitti Marwah, Andi; Sima Sohilauw, Indrayani Sima; Intan Kaimudin
Indonesian Journal of Science and Education Vol. 9 No. 2 (2025): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v9i2.3034

Abstract

This study aims to analyze the effectiveness of the implementation of the Project-Based Learning (PjBL) model in herbal plant processing as an ethnoscience-based biology learning strategy, determine its impact on students' understanding of biology concepts, and identify cultural values that can be developed through this learning. The study uses a mixed-methods approach with the following stages: (1) literature study and instrument development, (2) development of an ethnoscience-based PjBL module, (3) implementation in the Herbal Botany course at the University of Muhammadiyah Maluku, (4) observation and data collection through questionnaires, learning outcome tests, and interviews, and (5) descriptive quantitative and qualitative data analysis. The research subjects were 15 students of the Biology Education Study Program. The results showed that the implementation of PjBL was considered effective with an average score of effectiveness indicators in the range of 3.72–3.90 (scale 4), covering aspects of learning design, clarity of instructions, active student involvement, the role of lecturers, and increasing learning motivation. The impact on understanding biological concepts was also significant with an average indicator score of 3.65–3.98, particularly on the ability to link theory to practice, understand the structure and function of herbal plants, and produce products based on scientific concepts. Furthermore, the integration of ethnoscience was proven to strengthen local Maluku cultural values, with indicator scores of 3.74–3.98, such as respect for local wisdom, understanding traditional practices, and awareness of preserving culture through science. Thus, the ethnoscience-based PjBL model is effective as an innovative learning strategy that not only improves students' understanding of biology but also fosters an appreciation for local cultural identity
Authentic Assessment based on Teaching and Learning Trajectory: A Conceptual Model for Sustainable Assessment in Natural Science Learning Mursalin, Enggal; Rochman, Chaerul; Rahmawan, Setia; Al Mufida, Asita; Ilhami, Aldeva; Aondolumun Ayua, Geoffrey; Mileniati, Fajriati Ramadhini Nur
Indonesian Journal of Science and Education Vol. 9 No. 1 (2025): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v9i1.3058

Abstract

The transformation of 21st-century education requires assessment systems that not only measure cognitive achievement but also foster deep and meaningful learning. Current practices, however, remain dominated by summative tests that emphasize memorization and fail to capture students’ holistic development. To address this gap, this article introduces the Authentic Assessment Based on Teaching and Learning Trajectory (AABTLT) as a conceptual model for sustainable assessment integrated into the learning process. AABTLT aligns learning objectives, instructional activities, and authentic assessment along structured learning trajectories, enabling teachers to monitor students’ progressive development through contextual and formative feedback. Developed through a comprehensive literature review and synthesis of studies on authentic assessment, learning trajectories, and deep learning, this model highlights the importance of assessment as a driver of learning rather than a terminal evaluation tool. The novelty of AABTLT lies in its integrative approach, combining authentic tasks, developmental indicators, and reflective practices to strengthen student engagement, critical thinking, and creativity. Its practical implications include clear guidelines for designing assessment instruments aligned with 21st-century skills and strategies for supporting teachers in formative evaluation. Future empirical research is recommended to validate the effectiveness of AABTLT in science education and interdisciplinary contexts.
Learning Experience on Digestive System: Does it Underlie Students' Eating Habits? Mulyani , Dewi; Pranata, Ogi Danika
Indonesian Journal of Science and Education Vol. 9 No. 2 (2025): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v9i2.2808

Abstract

This study aimed to explore how biology education, particularly the topic of the digestive system, can serve as a basis for students to regulate their eating habits. The approach used in this research is a mixed-method approach, combining both quantitative and qualitative methods. The participants in this study comprised 69 twelfth-grade high school students. Data were collected using a questionnaire that included tests on digestive system content and eating habits, along with an open-ended section that required students to explain the eating patterns they adopted in their lives after studying the digestive system. The data collected were analyzed using Concurrent Triangulation. Students' understanding of the digestive system content remains relatively low, with an overall score percentage of 37.54%. Nevertheless, learning about the digestive system has positively impacted on the eating habits of most students, who have begun adopting healthier eating patterns. On the other hand, a small minority of students still neglect and have low awareness of maintaining healthy eating habits, indicating that further efforts are needed to enhance awareness and healthy habits among students. Support from parents, teachers, and the surrounding environment is crucial to ensure a balanced and nutritious diet for adolescents.

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