Integrated Science Education Journal

Development and Validation of Microbiology and Parasitology Laboratory Manual for Science Education

Kennedy A Beltran — Fri, 30 May 2025 01:51:01 +0700

Purpose of the study: This study aimed to develop and validate a Microbiology and Parasitology Laboratory Manual specifically designed for Science Education students, in alignment with the Commission on Higher Education (CHED) Memorandum Order No. 75, series of 2017. The manual seeks to bridge theoretical knowledge with practical application through structured, inquiry-based laboratory activities that cultivate scientific skills, promote critical thinking, and reinforce adherence to laboratory safety protocols.

Methodology: The validation process was conducted in two phases. First, subject matter experts in microbiology, parasitology, and science education evaluated the manual based on content accuracy, instructional clarity, relevance, alignment with CHED competencies, and pedagogical soundness. Their feedback was systematically integrated to enhance the manual’s quality. Second, pilot testing was conducted with science education students to assess usability, engagement, and impact on learning outcomes. Data were collected through expert validation checklists, student perception surveys, and performance assessments during laboratory sessions.

Main Findings: Findings revealed that the manual was highly satisfactory across all validation criteria. Quantitative and qualitative results from pilot implementation demonstrated significant improvements in students’ comprehension of microbiological and parasitological concepts, laboratory competencies, and overall engagement.

Novelty/Originality of this study: This study offers a discipline-specific, standards-aligned laboratory manual developed for teacher preparation, filling a critical gap in localized instructional materials. It emphasizes not only scientific content but also the pedagogical approaches needed for future educators, contributing to quality enhancement in science teacher education.

Factors Influencing Farmers’ Interest in Using Trichoderma sp. for Chili Cultivation in Giritirto Village, Gunung Kidul

Ira Mirani, Sukadi Sukadi, Adi Prayoga — Fri, 30 May 2025 02:17:04 +0700

Purpose of the study: This study aims to identify and analyze the internal and external factors that influence farmers’ interest in using Trichoderma sp. as a biological control agent for chili cultivation in Giritirto Village, Purwosari Subdistrict, Gunung Kidul.

Methodology: This study used a quantitative approach with purposive and random sampling methods. Data were collected through observation, interviews, questionnaires, and documentation. Instrument testing employed Microsoft Excel. Data analysis included validity and reliability tests, classical assumption tests, and multiple linear regression using SPSS software to assess the influence of various independent variables.

Main Findings: The study found that farmers' interest in using Trichoderma sp. was generally high. Among the factors examined, the role of extension workers and the availability of facilities and infrastructure had a significant positive effect on farmers' interest. In contrast, age, education level, and farming experience did not have a significant influence on their interest in adopting Trichoderma sp..

Novelty/Originality of this study: This study uniquely explores the socio-demographic and institutional factors influencing farmers’ interest in adopting Trichoderma sp., which has rarely been addressed in previous research. It provides new insights into the human dimension of sustainable agriculture adoption, offering practical implications for policy and extension strategies to promote environmentally friendly farming practices.

Techno-economic Analysis of Investment and Operation of Photovoltaic Panels under a Load Sharing Scheme

Sandy Yudhatama, Agus Ulinuha — Fri, 30 May 2025 15:36:04 +0700

Purpose of the study: This study aims to evaluate the techno-economic feasibility of the operational period of a 40 kWp on-grid Photovoltaic Panel with a load sharing scheme at Ella Skincare, focusing on technical analysis, investment and operational costs, and the potential for electricity cost savings.

Methodology: This study used a quantitative method by analyzing energy consumption data and electricity bills over 6 months before and 6 months after installing the Photovoltaic Panel. The system used 60 Vertex TSM-DE21 panels and a Solis S5-GC50K inverter. The data were processed to calculate the Net Present Value (NPV), Return on Investment (ROI), Levelized Cost of Electricity (LCOE), and Payback Period (PP).

Main Findings: The research results showed a 33.9% reduction in PLN electricity power consumption and more than 30% savings in electricity costs each month after the installation of the Photovoltaic Panel. Although the NPV had not yet exceeded the initial investment, the ROI reached 13.64% in the first year, indicating significant financial potential in the long term.

Novelty/Originality of this Research: This study provides empirical evidence on the effectiveness of the load sharing scheme in improving efficiency and reducing operational electricity costs in the commercial sector. This study offers new insights into the investment feasibility of Photovoltaic Panels in Indonesia, particularly in the context of utilizing renewable energy to reduce dependence on conventional energy sources.

A Descriptive Study of Plant Physiology Practicum Activities

Yaumil Istiqlal M Nur, Hendra Yulisman, Diyyan Marneli, Nazar Muhammad — Fri, 30 May 2025 00:00:00 +0700

Purpose of the study: This study aims to describe the practicum activities carried out in the Plant Physiology practicum activities of the Biology Education Tadris Laboratory, IAIN Batusangkar.

Methodology: This descriptive study combines the accuracy of numerical data and a more profound understanding through observation and interviews. The population in this study were all students who took the plant physiology practicum course in the odd semester of 2019, totaling 96 people and six laboratory assistants. Data collection consisted of quantitative data collection using questionnaires and qualitative data through interviews and observations. Quantitative data analysis was carried out using the average percentage score for each activity. Furthermore, qualitative data analysis from observations and interviews was carried out by bringing up themes and information patterns from practicum activities to support quantitative data.

Main Findings: Data analysis indicates that the practicum activities have been executed efficiently, evidenced by a planning score of 80.56 and an implementation score of 79.42. Additionally, the score for follow-up activity was 93.66. The overall average percentage of practicum activity execution was 84.55, indicating good category.

Novelty/Originality of this study: The activities of the practicum are detailed in this article, including planning, implementation, and follow-up. In order to generate comprehensive data, the analysis employs descriptive methods that are supplemented by observational data. Research data was collected from all parties involved in the practicum activities, including students, practicum assistants, and laboratory assistants. In contrast to other researchers who exclusively employ qualitative data with samples of practicum participants.