Case-Based Learning-Oriented Textbook: An Effort to Train Students’ Chemistry Problem Solving Skills

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Higher education plays a strategic role in developing the intellectual life of the nation and is part of the national education system. Chemistry learning should not only focus on mastering concepts but also on students’ ability to apply these concepts in real-world contexts through problem-solving skills to meet the challenges of the 21st century. This research aims to develop a case-based learning-oriented textbook that can train prospective teacher students’ chemistry problem-solving skills. This research method used Research and Development (R&D) as proposed by Borg and Gall, limited to the development stage. Data collection used non-test techniques, seeking validation from three subject matter and pedagogical experts. Quantitative descriptive statistics were used for data analysis. The validity test results showed that the case-based learning-oriented textbook was valid, with an Aiken validity index of 0.87 (high validity). Furthermore, the textbook can be used as a means to facilitate student learning activities in case-based learning to train prospective teacher students’ chemistry problem-solving skills, so that the function of this textbook can be maximized.

Effectiveness of the Rupiah Literacy Policy Through the www.cbprupiah.com Website in Mataram City, Indonesia

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This study aims to analyze the effectiveness of the Rupiah literacy policy implemented through the CBP Rupiah website www.cbprupiahntb.com in Mataram City and to identify the supporting and inhibiting factors affecting its implementation. The program is part of Bank Indonesia’s Love, Pride, and Understanding of Rupiah (CBP Rupiah) policy, which seeks to enhance public understanding of the functions, value, and role of the Rupiah as the national legal tender and a symbol of national sovereignty. This study employed a qualitative research approach. Data were collected through in-depth interviews, observations, and document analysis. Informants were selected purposively and included representatives of Bank Indonesia’s West Nusa Tenggara Regional Office, school principals, teachers, and students from elementary, junior high, and senior high schools in Mataram City. Data were analyzed using the Miles, Huberman, and Saldaña interactive model, consisting of data reduction, data display, and conclusion drawing. The findings indicate that the Rupiah literacy program delivered through the CBP Rupiah website is effective based on three policy effectiveness indicators: goal attainment, resource efficiency, and adaptability. The program successfully improved public knowledge, awareness, and positive attitudes toward the Rupiah through interactive educational methods and digital media utilization. Resource efficiency was reflected in the optimal use of human resources, educational facilities, and information technology without imposing significant additional burdens on schools. Adaptability was demonstrated through the use of digital platforms, the adjustment of learning methods to participants’ characteristics, and continuous program evaluation. Supporting factors included institutional support from Bank Indonesia, digital technology utilization, school support, student participation, and relevant educational materials. Inhibiting factors included limited website accessibility, inadequate digital literacy, time constraints, and intense information competition in the digital era.

Drivers of Goat-Coffee Integrated Farming System Adoption in East Java, Indonesia: An Extended Theory of Planned Behavior Approach

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Integrated farming systems are increasingly promoted as farm-level strategies to improve resource-use efficiency, reduce dependence on external inputs, and strengthen smallholder resilience. In coffee-based farming areas, goat–coffee integration offers a circular model in which goat manure can be processed as organic fertilizer for coffee plantations, while farm vegetation and surrounding biomass may support livestock feed availability. This study examines the behavioral determinants of farmers’ intention and adoption of goat–coffee integrated farming systems in East Java, Indonesia, using an extended Theory of Planned Behavior framework. Survey data were collected from 230 coffee farmers in Madiun (n = 110) and Bondowoso (n = 120) and analyzed using partial least squares structural equation modeling with SmartPLS 3.0. The results show that the model explained 56.9% of the variance in intention and 58.1% of the variance in adoption. Attitude, subjective norms, perceived behavioral control, injunctive group norms, and descriptive group norms positively and significantly influenced intention. Adoption was directly and significantly influenced by intention, perceived behavioral control, descriptive group norms, and attitude, whereas subjective norms and injunctive group norms had no significant direct effect on adoption. All indirect effects through intention were significant. These findings indicate that adoption is shaped by both motivational and implementation-capacity pathways. Extension programs should therefore combine benefit communication, peer-based demonstration, farmer-group mobilization, and practical assistance in manure processing, feed planning, and low-labor integration practices.

Overview of Neuroplasticity in the Application of the Reverse Whole Brain Model in College Students

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Modifications applied when using Whole Brain, from the initial application of the left quadrant to the right, to the change from the right quadrant to the left. The formulation of research questions; What is the modified form of the Whole Brain model?, What are the learning outcomes obtained from the use of the modified Whole Brain model? Can the results obtained from the use of modified Whole Brain models be used as tangible evidence of neuroplasticity?. The researcher used a quantitative descriptive design. This design illustrates how the Reverse Whole Brain Model was used based on the respondents. The researcher uses a questionnaire to collect research data. The questionnaire was developed by the researcher using Slavin’s (1995) Theory of Effectiveness. Researchers also used the Trail Making Test as a data collection instrument. TCR (Respondent Achievement Level/Tingkat Capaian Responden) was used to analyze the questionnaire data. TMT-A was analyzed using parametric tests, and TMT-B was analyzed using nonparametric tests. The Reverse Whole Brain model is considered effective in teaching and learning. The results show that the application of this model in the Listening and Speaking II class is considered an appropriate learning model. It also concluded that the students experience neuroplasticity.

Role of Artificial Intelligence for Modern Organizations Based on Tacit, Explicit, And Reusable Knowledge Resources: A Discussion

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Organizational knowledge management, including human resource management, is the most important mechanism for increasing organizational performance and hence the performance of business. Employees are the most valuable resource, determining a company’s success and growth and enabling its competitiveness in the international market. This article theoretically examines the essential characteristics of organizational knowledge management and the relationship between business performance and human resource management, incorporating artificial intelligence and explicit, tacit, and reusable knowledge. The study demonstrates how organization-wide management of tacit, explicit, and reusable knowledge, including human resource management, can help companies leverage the know-how, skills, competencies, and valuable knowledge of their employees for the company’s development and success. Effective organizational knowledge management is essential for achieving company goals. Organizations should focus on managing explicit and tacit knowledge, as well as ensuring that this knowledge can be reused efficiently. Doing so enhances employee effectiveness by providing access to relevant knowledge and skills, which expands competencies and, in turn, improves overall business performance.

Implementation of Co-Curricular Activities in Fostering Entrepreneurial Motivation Through the Local Wisdom of Glutinous Rice Vinegar Fermentation in Vocational High Schools (SMK) in Tayan Hulu District

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Background: Co-curricular activities in Vocational High Schools (SMK) serve as a strategic vehicle for contextual and meaningful entrepreneurship learning. Glutinous rice vinegar fermentation, as a local wisdom of the Dayak community in Tayan Hulu District, holds significant cultural and economic value as a medium for entrepreneurship education grounded in local potential.

Objectives: This study aims to describe the implementation of co-curricular activities based on glutinous rice vinegar fermentation, to analyze the partial effect of co-curricular implementation (X₁) and local wisdom of fermented vinegar (X₂) on students’ entrepreneurial motivation (Y), and to test their simultaneous effect in three SMKs in Tayan Hulu District, Sanggau Regency, West Kalimantan.

Methods: The study employed a quantitative approach with a descriptive-associative design. A total of 57 Grade XI students were selected using proportional random sampling from a total population of 238 students at SMKN 1 Tayan Hulu, SMKS Kristen Agape Patria Sosok, and SMKS Bina Utama Sosok. Data were collected through questionnaires that had been tested for validity and reliability, and analyzed using multiple linear regression, partial t-tests, simultaneous F-tests, and the coefficient of determination (R²).

Findings: Results revealed that all instrument items were valid (rₜₑₐₙₔₑ > rₜₐᵇₗₑ = 0.2162) and reliable (Cronbach’s Alpha: X₁ = 0.688; X₂ = 0.725; Y = 0.704). Data were normally distributed (sig. = 0.200 > 0.05) and free from multicollinearity (VIF = 1.114 < 10). Partially, co-curricular implementation had a significant effect on entrepreneurial motivation (sig. = 0.021 < 0.05; H₁ accepted), whereas local wisdom alone did not have a significant effect (sig. = 0.089 > 0.05; H₂ rejected). Simultaneously, both variables had a positive and significant effect (F = 6.287; sig. = 0.004; H₃ accepted) with Adjusted R² = 0.159.

Conclusion: Co-curricular activities based on the local wisdom of glutinous rice vinegar fermentation are proven effective in fostering students’ entrepreneurial motivation, particularly when implemented in a planned, systematic manner rooted in local cultural values. More sustained program development is needed for the influence of local wisdom to become statistically detectable.

Piodalan Caremony As the Implementation of Dewa Yadnya in the Life of Hindus in Bali

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Provide a clear and concise summary of the study, including: purpose, methods, key findings, and main conclusions. ​Piodalan is one of the sacred ceremonies in Balinese Hinduism that serves as an implementation of Dewa Yadnya, namely a sacred offering dedicated to Ida Sang Hyang Widhi Wasa and His manifestations. This study aims to analyze the philosophical meaning of the Piodalan ceremony, describe its implementation in the daily life of Hindus, identify the Hindu literary sources underlying its practice, and examine the challenges and solutions related to its preservation in the modern era. This study employs a qualitative descriptive method using a library research approach. Data were collected through the review of books, scientific articles, Hindu scriptures, and other relevant literature. The findings indicate that Piodalan is not merely a religious ritual but also embodies spiritual, social, cultural, and ecological values reflected in the concept of Tri Hita Karana, which emphasizes harmonious relationships between humans and God (parhyangan), among fellow humans (pawongan), and with the natural environment (palemahan). The implementation of Piodalan involves a series of ceremonial stages supported by various offerings (banten) as symbols of devotion and gratitude. Furthermore, the ceremony is grounded in Hindu teachings contained in Lontar Sundari Gama, Catur Marga, and Sruti and Smrti literature. However, modernization and globalization have posed challenges, including declining spiritual understanding among younger generations, reduced community participation in ngayah activities, and environmental concerns regarding ceremonial materials. Therefore, strengthening religious education, promoting community participation, and implementing environmentally sustainable practices are essential strategies to preserve the meaning and continuity of the Piodalan ceremony in contemporary Hindu society.

A Contrastive Cognitive Semantic Analysis of The Verb “Consider” In English and Vietnamese

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This study explores the polysemous nature of the English verb “consider” and its Vietnamese equivalents through the lens of Cognitive Linguistics, specifically drawing upon conceptual metaphor theory and the image schema framework. While English utilizes “consider” as a versatile “container” verb for various mental processes, Vietnamese requires a more granular lexical system that reflects specific cognitive and physical source domains. By analyzing authentic data from English – Vietnamese corpora and dictionaries, the research identifies several key metaphorical extensions: thinking is seeing (e.g., xem xét), evaluation is weighing (e.g., cân nhắc), and social orientation (e.g., đoái hoài). The findings reveal a significant cognitive divergence: whereas English emphasizes a “Rational-Linear”” model of mental labor, Vietnamese prioritizes an “Embodied-Relational” model. In Vietnamese, the act of “considering” is consistently anchored in physical experience and social harmony, moving from the pragmatic balancing of resources (liệu cơm gắp mắm) to the validation of personal worth through visual recognition (đoái hoài). The study concludes that these linguistic differences are not mere lexical curiosities but are deeply rooted in distinct cultural worldviews. These insights have practical implications for contrastive semantics, translation studies, and second language acquisition (SLA), particularly for Vietnamese learners of English who struggle with the lack of one-to-one equivalence in mental state verbs.

Implementation of the 6E-STEAM Learning Model Based on Nosiala Pale Local Wisdom: Analysis of Learning Outcomes and Student Motivation and Engagement Profiles

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This study aims to analyze learning outcomes and describe the motivation and engagement profiles of students following the implementation of the 6E-STEAM learning model based on the local wisdom of Nosiala Pale in biology instruction. The study employed a quantitative approach in a single control class using a pretest-posttest design for learning outcomes and a posttest to assess students’ motivation and engagement profiles. The study participants consisted of 28 students in the Biology Education Program who were taking the Conservation Biology course. Data were collected using a 30-item multiple-choice test to measure learning outcomes, as well as a questionnaire to measure students’ learning motivation and engagement. Data were analyzed using descriptive statistics, a paired-sample t-test, and N-gain analysis. The results showed that the average pre-test score was 67.38, while the average post-test score was 79.16. The results of the paired-sample t-test indicated a significant difference between the pre-test and post-test learning outcomes (t = -10.981; p < 0.001). The average N-gain value of 0.480, or 47.95%, falls into the moderate category. Meanwhile, student learning motivation falls into the very high category with an average score of 4.31, and student engagement falls into the high category with an average score of 3.94. These findings indicate that the implementation of the 6E-STEAM learning model based on Nosiala local wisdom is effective in improving student learning outcomes to a moderate level and is supported by high levels of student learning motivation and engagement.

Mathematical Problem-Solving Cooperative Learning (MPSCL): Enhancing Geometry Problem-Solving Ability among Santri in an Islamic Boarding School

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This study examined the effectiveness of Mathematical Problem-Solving Cooperative Learning (MPSCL) in enhancing the geometry problem-solving ability of santri in an Islamic boarding school, particularly on the topics of circle circumference and circle area. A quantitative approach was employed using a one-group pretest-posttest pre-experimental design. The participants were 15 ninth-grade santri from MTs Darul Hikmah Mumbulsari, an Islamic junior secondary school, selected through purposive sampling. The research instruments consisted of a geometry problem-solving test, a santri response questionnaire, and observation sheets assessing learning implementation and santri activities. Data were analyzed using descriptive and inferential statistics, including the Shapiro–Wilk normality test, paired-samples t-test, N-gain analysis, and effect size analysis (Cohen’s d). The findings revealed a significant improvement in the geometry problem-solving ability of the santri following the implementation of MPSCL. The paired-samples t-test yielded a significance value of 0.000 (p < .05), indicating a statistically significant difference between the pretest and posttest scores. The average N-gain scores were 0.466 for circle circumference and 0.552 for circle area, both categorized as moderate. Furthermore, Cohen’s d values of 2.541 and 4.445 indicated strong practical effects. The santri also demonstrated highly positive responses toward the learning process, while the implementation of learning activities and santri participation were categorized as very good. These findings suggest that MPSCL is an effective instructional approach for enhancing geometry problem-solving ability among santri and supporting meaningful mathematics learning in Islamic boarding school settings.