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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia
Sitti Aminah
Tadulako University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Development of a STEM-Based Science E-Module to Enhance Students’ Communication and Creativity Skills on Biodiversity Material Rini Oktavia; Masriani; Sitti Aminah
Jurnal Penelitian Pendidikan IPA Vol 11 No 9 (2025): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i9.11981

Abstract

His study aims to develop a STEM-based science e-module to enhance seventh-grade students’ communication and creativity skills in biodiversity material at MTs Negeri 1 Palu. The research employed a Research and Development (R&D) method with the ADDIE model, which includes stages of Analysis, Design, Development, Implementation, and Evaluation. Validation was conducted by content and media experts, as well as teachers and students. The developed e-module demonstrated high validity, with scores of 82% from content experts and 76.25% from media experts. Practicality testing also showed strong usability, with 86% approval from teachers and 92% from students. Implementation of the e-module led to significant improvements in student outcomes, increasing communication skills from 62% to 89% (Cohen’s d = 1.99) and creativity from 59% to 93% (Cohen’s d = 1.95). These results indicate that the e-module is not only valid and practical but also effective in enhancing communication and creativity skills, thus supporting the development of 21st-century competencies.
Analysis of Primary Metabolites Content in Ketapang Seed Tempe (Terminalia Catappa) Siska D. Wulandari; Siti Nuryanti; Tahril Tahril; Sitti Aminah
Jurnal Akademika Kimia Vol. 15 No. 1 (2026)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2026.v15.i1.pp9-16

Abstract

Ketapang seed tempeh (Terminalia catappa) is made from ketapang seed waste through a fermentation process using Rhizopus sp., as with soybean tempeh. This study used a quantitative descriptive method to determine the content of primary metabolites, including fat, protein, and carbohydrates. Laboratory analysis was conducted at the Chemistry Education Laboratory, Tadulako University, using the Soxhlet method for fat, the Kjeldahl method for protein, and the phenol-sulfur method for carbohydrates, as well as organoleptic tests by 15 panellists. The results showed that ketapang seed tempeh had very low fat content (0.1714%), low protein (0.0189 g per 100 g sample), and moderate carbohydrate (10.06%). Fried ketapang tempeh was preferred by the panellists, although its acceptance level was still lower than that of soybean tempeh. The novelty of this study lies in the quantitative evaluation of primary metabolites in tempeh made entirely from ketapang seeds, which has not been previously reported. These findings indicate that ketapang seeds have the potential to serve as an alternative ingredient in the production of low-fat tempeh.
Co-Authors Masriani Rini Oktavia Siska D. Wulandari Siti Nuryanti Tahril