Delivering Light Propagation, Refraction, and Reflection Learning Instructions Through a Teacher-Created Vodcast Embedded with Simulations
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Abstract
While literature suggests that video lectures or vodcasts may alleviate the disadvantaged situation of students under the modular distance learning modalities (MDLMs) that are implemented in the Philippines amidst the COVID-19 pandemic, there is no local purposive study examining the influence of vodcasts on science achievement. This study aims to develop a vodcast embedded with simulations on light propagation, refraction, and reflection as a supplementary learning material for the same lesson-content under the printed and digital MDLMs, to determine the achievement level of grade 11 Physical Science students in pre- and post-vodcast instructions, and to ascertain the usefulness of the vodcast as perceived by the student-respondents. The vodcast was rated as very satisfactory by 18 content and ICT expert-evaluators. The achievement level of the student-respondents improved from ‘did not meet expectations’ to ‘fairly satisfactory’ with the moderate normalized gain score of 0.46. The same student-respondents perceived the vodcast as very useful. Results suggest that the vodcast had a positive influence on the achievement of the student-respondents.
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