Virtual Booth

School science laboratories play a vital role in promoting experiential learning. However, they also expose students to safety risks that persist despite the use of established guidelines and conventional instructional materials. While digital teaching aids have been widely adopted in education, courseware specifically designed to support laboratory safety during school science experiments remains limited. This study aims to evaluate the usability of LabSera, a safety-integrated courseware developed to support the conduct of science experiments, especially in biology, with explicit emphasis on laboratory safety. An experimental one-group pretest–posttest study design was employed involving 28 Form 4 science students. Students’ learning outcomes were measured before and after the intervention, and the perception surveys regarding the Labsera were administered to both students and 15 pre-service science teachers. Data were analysed using the Wilcoxon signed-rank test, normalized gain analysis, and descriptive statistics, with internal consistency assessed using Cronbach’s alpha. The results indicated a statistically significant improvement in students’ post-test scores, with an overall medium level of learning gain. Both groups reported very high perceptions of the courseware, with pre-service teachers emphasising design, content, safety elements, and usability, while students focused on usability, motivation and attractiveness, safety awareness, and learning impact. LabSera demonstrates strong potential as a practical digital teaching aid for enhancing laboratory safety awareness and supporting effective science instruction, providing a foundation for future large-scale and controlled investigations.