Home-Based Sci-Lab Experiments in Developing Scientific Skills in General Biology 2

Abstract

This action research examined the use of home-based science laboratory experiments in developing the scientific skills of Grade 11 Science, Technology, Engineering, and Mathematics (STEM) students in General Biology 2 at Tanay Senior High School during School Year 2021-2022. The intervention was designed to provide hands-on learning opportunities during distance-learning conditions. Twenty-eight Grade 11 STEM students from Section Neptune participated and were grouped according to the proximity of their residences. Three teacher-developed laboratory activity sheets were implemented: Developing Maggots, DNA Extraction, and Frog Dissection. Before and after the intervention, the students completed a 15-item confidence checklist using a five-point scale. Performance rubrics were also used to evaluate the outputs of the three groups. The reported overall confidence mean increased from 3.28 before exposure, interpreted as Somewhat Confident, to 4.81 after exposure, interpreted as Completely Confident. The source manuscript reported a statistically significant difference based on the paired comparison of the 15 item means, t(14) = -12.25, p < .001. Group performance was Outstanding across all activities. The overall group mean was 4.75 for Developing Maggots, 4.83 for DNA Extraction, and 4.92 for Frog Dissection. The findings indicate that carefully guided home-based experiments can support scientific-skill confidence and practical engagement when face-to-face laboratory access is limited. The intervention may be adapted for blended and emergency distance-learning contexts, provided that safety protocols, guardian supervision, and appropriate materials are ensured.