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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) PENDIPA Journal of Science Education
Vandalita M.M. Rambitan
Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics

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Development of STEM-EDP-Based Student Worksheets to Improve Students' Critical Thinking Skills at SMP Negeri 17 Samarinda Cyndirela; Lambang Subagiyo; Sonja Verra Tinneke Lumowa; Makrina Tindangen; Yusak Hudiyono; Akhmad; Vandalita M.M. Rambitan; Masitah
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11171

Abstract

Critical thinking skills are important for students, but not all students possess strong critical thinking abilities. This study aims to develop a STEM-EDP-based Student Worksheet media to improve students' critical thinking skills in the topics of Ecology and Biodiversity. This research uses the ADDIE development model, developed by Robert Reiser and Michael Molenda, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The developed media was validated by experts in content and media, with the media expert validation result being 91% and the content expert validation result being 94%, both categorized as highly valid. Practicality testing was obtained from practicality questionnaires filled out by both teachers and students. The student practicality questionnaire resulted in 90.5%, categorized as very practical, and the teacher practicality test resulted in 90%, also categorized as very practical. The effectiveness of critical thinking skills was assessed through pretest and posttest results, using the N-Gain test, which resulted in a score of 0.7, categorized as high. Therefore, it can be concluded that the use of STEM-EDP-based Student Worksheets to improve students' critical thinking skills is effective and categorized as high.
- Uji Efektivitas Formulasi Sabun Cuci Piring Berbahan Dasar Ekstraksi Kulit Buah Nangka (Artocarpus heterophyllus) Dengan Penambahan Gel Lidah Buaya dan Jeruk Kasturi: Uji Efektivitas Formulasi Sabun Cuci Piring Berbahan Dasar Ekstraksi Kulit Buah Nangka (Artocarpus heterophyllus) Dengan Penambahan Gel Lidah Buaya dan Jeruk Kasturi Silla Ariyani; Vandalita M.M. Rambitan; Herliani, Sonja V.T. Lumowa
PendIPA Journal of Science Education Vol 10 No 1 (2026): January - March
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.10.1.23-27

Abstract

This study aimed to formulate and evaluate an eco-friendly dishwashing liquid made from jackfruit peel (Artocarpus heterophyllus) extract with the addition of aloe vera gel and calamansi juice. The extract was obtained through ethanol maceration and formulated at different concentrations. Product evaluation included organoleptic properties, homogeneity, pH, viscosity, foam stability, and antibacterial activity against Staphylococcus aureus. The results showed that the formulation produced a dishwashing liquid with good physical characteristics, antibacterial effectiveness, and safety for use. In addition to its potential as an environmentally friendly cleaning agent, this product can be utilized as contextual biotechnology learning material for senior high school students.
Co-Authors Akhmad Akhmad Cyndirela Herliani, Sonja V.T. Lumowa Lambang Subagiyo Makrina Tindangen Masitah - Silla Ariyani Sonja Verra Tinneke Lumowa Yusak Hudiyono, Yusak