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All Journal Indonesian Journal of STEM Education Indonesian Journal of Applied Science and Technology
Ahmadi Ahmadi
Mandalika University of Education
Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Education Engineering Mathematics Physics Public Health Other

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Evaluation of Vocational High School Students' Soft Skills During Industrial Internship: A Case Study of Grade XII Chemical Engineering Students at SMKN 3 Mataram Ahmadi Ahmadi; Baiq Risni Maripa
Indonesian Journal of Applied Science and Technology Vol. 7 No. 1 (2026): Edisi Januari-Juni 2026
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v7i1.2001

Abstract

This study evaluates soft skills, punctuality, discipline, and work ethic among Grade XII students of SMKN 3 Mataram, Industrial Chemical Engineering Department, during an industrial internship at CV. Chemika Karya is a household-product manufacturer producing soaps, detergents, floor cleaners, and related cleaning products. The study used a qualitative evaluative case study involving six male students who were assessed directly by an industrial supervisor. Data were collected from structured observation sheets, a simple workplace assessment rubric, and supervisor evaluation notes. The assessed dimensions were creativity, teamwork, communication, problem-solving, punctuality, discipline, and work ethic. Data were analyzed using simple tools: spreadsheet tabulation to summarize assessment categories, color-coded recapitulation to identify recurring patterns, and a manual thematic matrix to interpret supervisor notes. The findings show that creativity, teamwork, communication, problem-solving, and punctuality were still weak. Students tended to wait for instructions, were not yet confident in proposing ideas, needed guidance in coordinating tasks, and often reported problems only after being asked by the supervisor. Punctuality also required improvement, especially in arriving on time and completing assigned tasks according to schedule. However, work ethic was assessed positively because students showed willingness to learn, respect for workplace procedures, and responsibility for assigned work. These findings suggest that vocational schools need to strengthen pre-internship preparation through work communication drills, collaborative assignments, simple problem-based learning, punctuality habituation, and continuous feedback from industrial supervisors.
Praktikum Sabun Cair dengan Ekstrak Bunga Sepatu: Mengembangkan Pemecahan Masalah Mahasiswa Kimia Melalui Kimia Terapan Ahmadi Ahmadi; Baiq Risni Maripa
Indonesian Journal of STEM Education Vol. 4 No. 1 (2022): Edisi Januari-Juni 2022
Publisher : Indonesian Publication Center

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Abstract

Problem-solving skills are an essential competency that chemistry education students must master as future educators. This study aims to analyze the effectiveness of a laboratory experiment on the formulation of liquid soap enriched with hibiscus flower extract (Hibiscus rosa-sinensis L.) in developing students’ problem-solving skills. The research design employed a pre-experimental approach with a one-group pretest-posttest design involving 15 fifth-semester chemistry education students at Mandalika University of Education. The learning intervention was designed based on contextual problems through six stages: orientation to formulation problems, extraction of bioactive components from hibiscus flowers, design of liquid soap formulas, implementation of manufacturing procedures, testing of product quality parameters, and reflective evaluation based on empirical data. The measurement instrument consisted of a structured essay test that assessed six problem-solving indicators: problem identification, conceptual analysis, solution planning, implementation strategies, data interpretation, and critical evaluation. Data analysis utilized the Shapiro-Wilk normality test, paired t-test, normalized gain, and Cohen’s d effect size. The results showed a significant increase in problem-solving scores from a mean of 50.4 (SD=10.2) to 85.6 (SD=7.8), with a t-value (14)=4.26, p<0.001. An N-gain value of 0.71 indicates a high category, with an effect size of d=1.10 indicating a large practical impact. An applied chemistry context based on household products has proven effective in bridging the gap between theoretical knowledge and real-world applications in chemistry education.
Project-Based Learning as a Catalyst for Innovation: Analyzing its Role and Effectiveness in Developing Creative Thinking Gunawan Gunawan; Lovy Herayanti; Ahmadi Ahmadi; Fahmi Yahya; Baiq Nabila Saufika Zainuri
Indonesian Journal of STEM Education Vol. 5 No. 1 (2023): Edisi Januari-Juni 2023
Publisher : Indonesian Publication Center

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Abstract

This narrative review synthesizes recent literature to explore the significant role of Project-Based Learning (PjBL) as a catalyst for innovation through the development of creative thinking among students. Drawing from a comprehensive review of studies, this paper examines how PBL frameworks, by engaging learners in authentic, complex problem-solving and hands-on project creation, inherently foster environments conducive to divergent thinking, novel idea generation, and critical problem analysis. We analyze the pedagogical mechanisms within PjBL, such as collaboration, inquiry-based learning, and iterative design, that contribute to enhancing students' creative abilities across various educational levels and disciplines, including STEM and engineering. Furthermore, the review discusses the documented effectiveness of PjBL in improving not only creative thinking skills but also related competencies like critical thinking and self-efficacy, which are vital for innovation. The findings underscore PjBL's potential to equip students with the necessary cognitive tools to navigate and contribute creatively to an ever-evolving world. This review aims to consolidate current understanding and highlight future research directions for optimizing PjBL implementation to maximize its impact on fostering innovation-driven creative thinking.
Co-Authors Baiq Nabila Saufika Zainuri Baiq Risni Maripa Fahmi Yahya G. Gunawan Lovy Herayanti