The study sought to evaluate the level of students’ understanding, problem-solving skills, practical application, and difficulties encountered in their learning of spherical mirrors and thin lenses, as well as their perceptions of how their science teachers deliver their lessons in the classroom setting. The study adopted a quantitative descriptive correlational research design to systematically examine the relationships among these variables. The researcher also employed a two-stage cluster sampling technique to ensure a representative selection of participants. The respondents of this study were 165 Grade 10 students from three randomly selected schools in Santa Catalina District 2. The researcher utilized a 30-item test questionnaire to measure students’ level of knowledge and a Likert scale survey to gather their perceptions regarding instructional delivery. The data analysis used in this study included mean, standard deviation, and composite scoring to provide a clear interpretation of the results. The study found that the Grade 10 students had a satisfactory level of understanding of spherical mirrors and lenses, particularly in practical application and ray diagram interpretation. However, the students demonstrated their lowest performance in problem-solving and conceptual understanding, especially when they were required to explain concepts without relying on formulas. This indicates a tendency to depend on procedural knowledge rather than deep conceptual reasoning. The students also encountered some difficulties in applying formulas accurately, constructing ray diagrams, and understanding light behavior in mirrors and lenses. On the other hand, the students perceived the instructional delivery of their science teachers as very effective, as clear explanations, real-life examples, and hands-on learning activities significantly helped them understand concepts and solve problems more effectively.
Taculod et al. (Thu,) studied this question.