Video Lessons as Supplemental Instruction for Grade 9 Students during the COVID-19 Pandemic

The Department of Education (DepEd) implemented the modular learning modality in public schools amidst the pandemic. The study aimed to examine the effectiveness of the video lesson as supplementary instructional material to the module. Ninety respondents from Grade 9 students at Beatriz D. Durano Memorial National High School were selected and divided into experimental and control groups. The study employed the quasi-experimental research design and lasted for four weeks. Questionnaires were used in gathering the demographic data. They drew the percentages, ranks, and averages from the variables. A 48-item exam was administered in pre-test and post-test to measure the respondents' academic performance. Most of the respondents' ages were appropriate for the Grade 9 level. The majority were in the poor income group. Mobile data was the dominant source of internet connection, and the device used was primarily smartphones. Concerning academic performance, both groups did poorly in the pre-test. In the post-test, they did fairly satisfactorily; however, the experimental group performed slightly better. T-test was used for statistical treatment. The results revealed that no significant differences in the pre-test and post-test performances of the two groups; likewise, there was no significant main gain difference on the pre-test and post-test scores between the two groups. It is recommended that the teacher-made video lessons be used as supplementary instructional materials to the modules and apply the theories incorporated in this study to other video lessons.