Development and Validation of Video Lessons as Supplemental Materials in Teaching Mathematics for Grade 1 Pupils

Abstract

This study aimed to develop and validate video lessons in terms of format, numeracy, content, and evaluation. The developed and validated supplemental materials was tested on its acceptability in terms of learning competencies, appropriateness, presentation and organization, and usefulness. Further, the video lessons were used to grade 1 pupil in the Eastern Samar Division wherein their achievement was measured through test scores before and after exposing them to supplemental video lesson. The study used the descriptive, and experimental research method. The chosen respondents of the study were 680 pupils and 8 teachers’ experts in Eastern Samar Division during SY 2022-2023. There are four instruments used in the study, diagnostic test for numeracy competency, level of validity of video lesson, level of acceptability of the video lesson and the pretest and post-test instrument. Data were analyzed using frequency, percentage, mean, and weighted mean, and standard deviation, and t-test.  The results show that the mastery level of numeracy competencies of Grade I pupils in the Division of Eastern Samar is in numerate performance. The level of validity of the video lesson that only the format of the developed Video Lesson obtained a high reliability while all other factors have shown low reliability. The level of acceptability of the video lesson in terms of learning competencies, appropriateness, presentation and organization, and usefulness are very highly evident. The pupil’s achievement test score in Mathematics I is very satisfactory. There is a significant difference between the pretest and post-test scores of the pupil’s respondents. It is recommended that Mathematics teachers should utilized video lesson that enhance scientific and digital ability of the pupils.