Ni Luh Tirtasari
Department of Science Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Semarang, Indonesia

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Enhancing Science Teachers’ Competence in Scientific Research through a STEM-ESD to Achieve Quality of Education Arif Widiyatmoko; Septiko Aji; Rifa Atunnisa; Ni Luh Tirtasari; Tiara Dwi Wulandari; Nadia Eka Ardhani
Journal of Community Empowerment Vol. 6 No. 1 (2026): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v6i1.58207

Abstract

Competence in scientific research is essential for science teachers to support quality education and guide student research focused on sustainability issues. However, some teachers still face difficulties in formulating research questions, determining methods, designing instruments, analyzing data, and integrating STEM-ESD into scientific research. This community service activity aims to enhance the scientific research competencies of science teachers in Semarang City through STEM-ESD-based training and mentoring. The activity employs a capacity-building approach based on action learning, implemented through preparation, implementation, and evaluation phases. The participants were 40 junior high school science teachers who are members of the Semarang City MGMP. Data were collected through pre- and post-tests of research competencies and participant response questionnaires, then analyzed descriptively using percentages and N-Gain. The results showed an improvement in research competencies across all indicators, ranging from moderate to high. Participants also gave very positive feedback on the relevance of the training materials and the training delivery. These findings indicate that STEM-ESD training is effective in sustainably strengthening the research capacity of science teachers at partner schools.
Digitalization of Microscopic Cell Analysis Using ImageJ and Micrometers as an Innovation in Science Experiments in the Era of Industrial Revolution 4.0 Litasari Aldila Aribowo; Ni Luh Tirtasari; Prasetyo Listiaji; Nanik Wulan Sari; Inayah Inayah
Jurnal Pemberdayaan Masyarakat Vol 5, No 3 (2026)
Publisher : Yayasan Keluarga Guru Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46843/jpm.v5i3.843

Abstract

Cell measurement and analysis are fundamental skills in biology and science education microscopic practicums. The purpose of this study is to compare the accuracy, consistency, and processing time of onion cell measurements using an ocular micrometer as a traditional method and ImageJ software as a digital method. The digitalization of microscopic cell analysis as an innovation in science education supports the 4.0 Industrial Revolution. The research employed a comparative-experimental design. This study's sample consisted of 270 undergraduate students from a university with basic experience using micrometers and microscopes, ensuring that the participants' technical abilities were relatively homogeneous. The data analysis for this study focuses on comparing cell size measurements and processing time between the two methods. The results show a non-significant difference in cell size measurements and significant differences in processing time between the traditional and digital methods, corresponding to a large effect size and a reduction in processing time for the digital method. The digital method is more efficient. The results of this study suggest that the digitalization of microscopic cell analysis not only empowers technology integration in science education but also supports the development of students' digital literacy and analytical skills.