Development and Evaluation of a Video-Based Supplementary Learning Material on Organic Mix Feed for Ducks and Its Effects on Grade 9 Students’ Content Knowledge
DOI:
https://doi.org/10.5281/zenodo.21055412Keywords:
: video-based learning, supplementary instructional material, organic mix feed, ADDIE model, agricultural education, Grade 9 students, content knowledgeAbstract
This study developed, implemented, and evaluated a video-based supplementary learning material on organic mix feed for ducks among Grade 9 students at Hinunangan National High School. Guided by the ADDIE instructional design model, it aimed to identify learning gaps, develop a contextualized multimedia resource, determine its effectiveness in improving content knowledge, and assess its acceptability. A quasi-experimental one-group pretest–posttest design was employed involving 51 students. Data were gathered using researcher-developed achievement tests and a student perception questionnaire and analyzed using descriptive and inferential statistics. Results revealed that 45.1% of students were classified under the “Needs Improvement” level, indicating limited prior knowledge in ingredient identification, nutritional understanding, and feed preparation procedures. Following the intervention, the mean score increased from 13.43 to 23.08, yielding a 71.85% gain. A paired-samples t-test showed a statistically significant difference between pretest and posttest scores t (50) = −11.72, p < .001), while a large effect size (d = 1.64) indicated strong instructional impact. The weak correlation between pretest and posttest scores (r = .234, p = .099) suggests that learning gains were not dependent on prior achievement. Students also rated the instructional material as highly acceptable in terms of clarity, relevance, engagement, usability, and learning effectiveness. The findings indicate that the video-based instructional material significantly improved students’ content knowledge and was positively received. This study demonstrates the effectiveness of contextualized multimedia instruction in enhancing conceptual understanding and procedural skills in agricultural education and supports its integration into Technology and Livelihood Education instruction.
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